From ac45e6293f3074dc6ccf984e210c8793796eaf28 Mon Sep 17 00:00:00 2001 From: WEN Pingbo Date: Mon, 1 Jan 2018 21:29:18 -0800 Subject: Input: hil_mlc - convert timeval to time64_t Since mlc->lcv_t is only interested in seconds, directly using time64_t here. This gets rid of the deprecated do_gettimeofday() and avoids problems with time going backwards since we now use the monotonic clocksource. Signed-off-by: WEN Pingbo Signed-off-by: Arnd Bergmann Patchwork-Id: 10076611 Signed-off-by: Dmitry Torokhov --- drivers/input/serio/hil_mlc.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c index d66d01c5373b..581e47119363 100644 --- a/drivers/input/serio/hil_mlc.c +++ b/drivers/input/serio/hil_mlc.c @@ -274,14 +274,12 @@ static int hilse_match(hil_mlc *mlc, int unused) /* An LCV used to prevent runaway loops, forces 5 second sleep when reset. */ static int hilse_init_lcv(hil_mlc *mlc, int unused) { - struct timeval tv; + time64_t now = ktime_get_seconds(); - do_gettimeofday(&tv); - - if (mlc->lcv && (tv.tv_sec - mlc->lcv_tv.tv_sec) < 5) + if (mlc->lcv && (now - mlc->lcv_time) < 5) return -1; - mlc->lcv_tv = tv; + mlc->lcv_time = now; mlc->lcv = 0; return 0; -- cgit v1.2.3 From 59d805af417809820ed54a8a02525b03bc74d62a Mon Sep 17 00:00:00 2001 From: WEN Pingbo Date: Mon, 1 Jan 2018 21:31:18 -0800 Subject: Input: hil_mlc - convert timeval to jiffies struct timeval is not y2038 safe, and what mlc->instart do is scheduling a task in a fixed timeout, so jiffies is the simplest choice here. In hilse_donode(), the expires in mod_timer equals jiffies + intimeout - (now - instart) If we use jiffies in 'now', the expires equals instart + intimeout So, all we need to do is that making sure expires is a future timestamp before passed it to mod_timer. [arnd: slightly simplified patch further] Link: https://lists.linaro.org/pipermail/y2038/2015-October/000937.html Signed-off-by: WEN Pingbo Signed-off-by: Arnd Bergmann Patchwork-Id: 10076615 Signed-off-by: Dmitry Torokhov --- drivers/input/serio/hil_mlc.c | 18 +++++++----------- drivers/input/serio/hp_sdc_mlc.c | 5 +---- include/linux/hil_mlc.h | 4 ++-- 3 files changed, 10 insertions(+), 17 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c index 581e47119363..e1423f7648d6 100644 --- a/drivers/input/serio/hil_mlc.c +++ b/drivers/input/serio/hil_mlc.c @@ -602,8 +602,8 @@ static inline void hilse_setup_input(hil_mlc *mlc, const struct hilse_node *node BUG(); } mlc->istarted = 1; - mlc->intimeout = node->arg; - do_gettimeofday(&(mlc->instart)); + mlc->intimeout = usecs_to_jiffies(node->arg); + mlc->instart = jiffies; mlc->icount = 15; memset(mlc->ipacket, 0, 16 * sizeof(hil_packet)); BUG_ON(down_trylock(&mlc->isem)); @@ -708,7 +708,7 @@ static int hilse_donode(hil_mlc *mlc) break; } mlc->ostarted = 0; - do_gettimeofday(&(mlc->instart)); + mlc->instart = jiffies; write_unlock_irqrestore(&mlc->lock, flags); nextidx = HILSEN_NEXT; break; @@ -729,18 +729,14 @@ static int hilse_donode(hil_mlc *mlc) #endif while (nextidx & HILSEN_SCHED) { - struct timeval tv; + unsigned long now = jiffies; if (!sched_long) goto sched; - do_gettimeofday(&tv); - tv.tv_usec += USEC_PER_SEC * (tv.tv_sec - mlc->instart.tv_sec); - tv.tv_usec -= mlc->instart.tv_usec; - if (tv.tv_usec >= mlc->intimeout) goto sched; - tv.tv_usec = (mlc->intimeout - tv.tv_usec) * HZ / USEC_PER_SEC; - if (!tv.tv_usec) goto sched; - mod_timer(&hil_mlcs_kicker, jiffies + tv.tv_usec); + if (time_after(now, mlc->instart + mlc->intimeout)) + goto sched; + mod_timer(&hil_mlcs_kicker, mlc->instart + mlc->intimeout); break; sched: tasklet_schedule(&hil_mlcs_tasklet); diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c index d50f0678bf47..232d30c825bd 100644 --- a/drivers/input/serio/hp_sdc_mlc.c +++ b/drivers/input/serio/hp_sdc_mlc.c @@ -149,7 +149,6 @@ static int hp_sdc_mlc_in(hil_mlc *mlc, suseconds_t timeout) /* Try to down the semaphore */ if (down_trylock(&mlc->isem)) { - struct timeval tv; if (priv->emtestmode) { mlc->ipacket[0] = HIL_ERR_INT | (mlc->opacket & @@ -160,9 +159,7 @@ static int hp_sdc_mlc_in(hil_mlc *mlc, suseconds_t timeout) /* printk(KERN_DEBUG PREFIX ">[%x]\n", mlc->ipacket[0]); */ goto wasup; } - do_gettimeofday(&tv); - tv.tv_usec += USEC_PER_SEC * (tv.tv_sec - mlc->instart.tv_sec); - if (tv.tv_usec - mlc->instart.tv_usec > mlc->intimeout) { + if (time_after(jiffies, mlc->instart + mlc->intimeout)) { /* printk("!%i %i", tv.tv_usec - mlc->instart.tv_usec, mlc->intimeout); diff --git a/include/linux/hil_mlc.h b/include/linux/hil_mlc.h index d6fc839bdf46..774f7d3b8f6a 100644 --- a/include/linux/hil_mlc.h +++ b/include/linux/hil_mlc.h @@ -144,8 +144,8 @@ struct hil_mlc { hil_packet ipacket[16]; hil_packet imatch; int icount; - struct timeval instart; - suseconds_t intimeout; + unsigned long instart; + unsigned long intimeout; int ddi; /* Last operational device id */ int lcv; /* LCV to throttle loops */ -- cgit v1.2.3 From d09ac610eaaa0b3b29c3ac6c4e107cb1dbd4a356 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 1 Jan 2018 21:32:02 -0800 Subject: Input: hp_sdc - convert to ktime_get() This gets rid of the deprecated do_gettimeofday() call in favor of ktime_get(), which is also more reliable as it uses monotonic times. The code now gets a bit simpler. Signed-off-by: Arnd Bergmann Patchwork-Id: 10076621 Signed-off-by: Dmitry Torokhov --- drivers/input/serio/hp_sdc.c | 17 +++++++---------- include/linux/hp_sdc.h | 2 +- 2 files changed, 8 insertions(+), 11 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c index 1d7c7d81a5ef..0b8a25c58d02 100644 --- a/drivers/input/serio/hp_sdc.c +++ b/drivers/input/serio/hp_sdc.c @@ -193,7 +193,7 @@ static void hp_sdc_take(int irq, void *dev_id, uint8_t status, uint8_t data) curr->seq[curr->idx++] = status; curr->seq[curr->idx++] = data; hp_sdc.rqty -= 2; - do_gettimeofday(&hp_sdc.rtv); + hp_sdc.rtime = ktime_get(); if (hp_sdc.rqty <= 0) { /* All data has been gathered. */ @@ -306,13 +306,10 @@ static void hp_sdc_tasklet(unsigned long foo) write_lock_irq(&hp_sdc.rtq_lock); if (hp_sdc.rcurr >= 0) { - struct timeval tv; + ktime_t now = ktime_get(); - do_gettimeofday(&tv); - if (tv.tv_sec > hp_sdc.rtv.tv_sec) - tv.tv_usec += USEC_PER_SEC; - - if (tv.tv_usec - hp_sdc.rtv.tv_usec > HP_SDC_MAX_REG_DELAY) { + if (ktime_after(now, ktime_add_us(hp_sdc.rtime, + HP_SDC_MAX_REG_DELAY))) { hp_sdc_transaction *curr; uint8_t tmp; @@ -321,8 +318,8 @@ static void hp_sdc_tasklet(unsigned long foo) * we'll need to figure out a way to communicate * it back to the application. and be less verbose. */ - printk(KERN_WARNING PREFIX "read timeout (%ius)!\n", - (int)(tv.tv_usec - hp_sdc.rtv.tv_usec)); + printk(KERN_WARNING PREFIX "read timeout (%lldus)!\n", + ktime_us_delta(now, hp_sdc.rtime)); curr->idx += hp_sdc.rqty; hp_sdc.rqty = 0; tmp = curr->seq[curr->actidx]; @@ -551,7 +548,7 @@ unsigned long hp_sdc_put(void) /* Start a new read */ hp_sdc.rqty = curr->seq[curr->idx]; - do_gettimeofday(&hp_sdc.rtv); + hp_sdc.rtime = ktime_get(); curr->idx++; /* Still need to lock here in case of spurious irq. */ write_lock_irq(&hp_sdc.rtq_lock); diff --git a/include/linux/hp_sdc.h b/include/linux/hp_sdc.h index d392975d8887..6f1dee7e67e0 100644 --- a/include/linux/hp_sdc.h +++ b/include/linux/hp_sdc.h @@ -281,7 +281,7 @@ typedef struct { hp_sdc_transaction *tq[HP_SDC_QUEUE_LEN]; /* All pending read/writes */ int rcurr, rqty; /* Current read transact in process */ - struct timeval rtv; /* Time when current read started */ + ktime_t rtime; /* Time when current read started */ int wcurr; /* Current write transact in process */ int dev_err; /* carries status from registration */ -- cgit v1.2.3 From b3495cecb24c8e38e1b0c569c69c983b6a2d6d9c Mon Sep 17 00:00:00 2001 From: Deepa Dinamani Date: Mon, 1 Jan 2018 22:27:11 -0800 Subject: Input: uinput - use monotonic times for timestamps struct timeval which is part of struct input_event to maintain the event times is not y2038 safe. Real time timestamps are also not ideal for input_event as this time can go backwards as noted in the patch a80b83b7b8 by John Stultz. The patch switches the timestamps to use monotonic time from realtime time. This is assuming no one is using absolute times from these timestamps. The structure to maintain input events will be changed in a different patch. Signed-off-by: Deepa Dinamani Acked-by: Peter Hutterer Patchwork-Id: 10118255 Signed-off-by: Dmitry Torokhov --- drivers/input/misc/uinput.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 39ddd9a73feb..d521aecbc078 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -84,11 +84,14 @@ static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) { struct uinput_device *udev = input_get_drvdata(dev); + struct timespec64 ts; udev->buff[udev->head].type = type; udev->buff[udev->head].code = code; udev->buff[udev->head].value = value; - do_gettimeofday(&udev->buff[udev->head].time); + ktime_get_ts64(&ts); + udev->buff[udev->head].time.tv_sec = ts.tv_sec; + udev->buff[udev->head].time.tv_usec = ts.tv_nsec / NSEC_PER_USEC; udev->head = (udev->head + 1) % UINPUT_BUFFER_SIZE; wake_up_interruptible(&udev->waitq); -- cgit v1.2.3 From 3c8a23c29d30eec7a20fbb3e47e5346d9ada687b Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 1 Jan 2018 22:49:29 -0800 Subject: Input: gpio_tilt - delete driver This driver was merged in 2011 as a tool for detecting the orientation of a screen. The device driver assumes board file setup using the platform data from . But no boards in the kernel tree defines this platform data. As I am faced with refactoring drivers to use GPIO descriptors and pass decriptor tables from boards, or use the device tree device drivers like these creates a serious problem: I cannot fix them and cannot test them, not even compile-test them with a system actually using it (no in-tree boardfile). I suggest to delete this driver and rewrite it using device tree if it is still in use on actively maintained systems. I can also offer to rewrite it out of the blue using device tree if someone promise to test it and help me iterate it. Signed-off-by: Linus Walleij Acked-by: Heiko Stuebner Patchwork-Id: 10133609 Signed-off-by: Dmitry Torokhov --- Documentation/gpio/drivers-on-gpio.txt | 5 - Documentation/input/devices/gpio-tilt.rst | 103 --------------- drivers/input/misc/Kconfig | 14 -- drivers/input/misc/Makefile | 1 - drivers/input/misc/gpio_tilt_polled.c | 210 ------------------------------ include/linux/input/gpio_tilt.h | 74 ----------- 6 files changed, 407 deletions(-) delete mode 100644 Documentation/input/devices/gpio-tilt.rst delete mode 100644 drivers/input/misc/gpio_tilt_polled.c delete mode 100644 include/linux/input/gpio_tilt.h (limited to 'drivers/input') diff --git a/Documentation/gpio/drivers-on-gpio.txt b/Documentation/gpio/drivers-on-gpio.txt index 9a78d385b92e..a2ccbab12eb7 100644 --- a/Documentation/gpio/drivers-on-gpio.txt +++ b/Documentation/gpio/drivers-on-gpio.txt @@ -28,11 +28,6 @@ hardware descriptions such as device tree or ACPI: - gpio-beeper: drivers/input/misc/gpio-beeper.c is used to provide a beep from an external speaker connected to a GPIO line. -- gpio-tilt-polled: drivers/input/misc/gpio_tilt_polled.c provides tilt - detection switches using GPIO, which is useful for your homebrewn pinball - machine if for nothing else. It can detect different tilt angles of the - monitored object. - - extcon-gpio: drivers/extcon/extcon-gpio.c is used when you need to read an external connector status, such as a headset line for an audio driver or an HDMI connector. It will provide a better userspace sysfs interface than GPIO. diff --git a/Documentation/input/devices/gpio-tilt.rst b/Documentation/input/devices/gpio-tilt.rst deleted file mode 100644 index fa6e64570aa7..000000000000 --- a/Documentation/input/devices/gpio-tilt.rst +++ /dev/null @@ -1,103 +0,0 @@ -Driver for tilt-switches connected via GPIOs -============================================ - -Generic driver to read data from tilt switches connected via gpios. -Orientation can be provided by one or more than one tilt switches, -i.e. each tilt switch providing one axis, and the number of axes -is also not limited. - - -Data structures ---------------- - -The array of struct gpio in the gpios field is used to list the gpios -that represent the current tilt state. - -The array of struct gpio_tilt_axis describes the axes that are reported -to the input system. The values set therein are used for the -input_set_abs_params calls needed to init the axes. - -The array of struct gpio_tilt_state maps gpio states to the corresponding -values to report. The gpio state is represented as a bitfield where the -bit-index corresponds to the index of the gpio in the struct gpio array. -In the same manner the values stored in the axes array correspond to -the elements of the gpio_tilt_axis-array. - - -Example -------- - -Example configuration for a single TS1003 tilt switch that rotates around -one axis in 4 steps and emits the current tilt via two GPIOs:: - - static int sg060_tilt_enable(struct device *dev) { - /* code to enable the sensors */ - }; - - static void sg060_tilt_disable(struct device *dev) { - /* code to disable the sensors */ - }; - - static struct gpio sg060_tilt_gpios[] = { - { SG060_TILT_GPIO_SENSOR1, GPIOF_IN, "tilt_sensor1" }, - { SG060_TILT_GPIO_SENSOR2, GPIOF_IN, "tilt_sensor2" }, - }; - - static struct gpio_tilt_state sg060_tilt_states[] = { - { - .gpios = (0 << 1) | (0 << 0), - .axes = (int[]) { - 0, - }, - }, { - .gpios = (0 << 1) | (1 << 0), - .axes = (int[]) { - 1, /* 90 degrees */ - }, - }, { - .gpios = (1 << 1) | (1 << 0), - .axes = (int[]) { - 2, /* 180 degrees */ - }, - }, { - .gpios = (1 << 1) | (0 << 0), - .axes = (int[]) { - 3, /* 270 degrees */ - }, - }, - }; - - static struct gpio_tilt_axis sg060_tilt_axes[] = { - { - .axis = ABS_RY, - .min = 0, - .max = 3, - .fuzz = 0, - .flat = 0, - }, - }; - - static struct gpio_tilt_platform_data sg060_tilt_pdata= { - .gpios = sg060_tilt_gpios, - .nr_gpios = ARRAY_SIZE(sg060_tilt_gpios), - - .axes = sg060_tilt_axes, - .nr_axes = ARRAY_SIZE(sg060_tilt_axes), - - .states = sg060_tilt_states, - .nr_states = ARRAY_SIZE(sg060_tilt_states), - - .debounce_interval = 100, - - .poll_interval = 1000, - .enable = sg060_tilt_enable, - .disable = sg060_tilt_disable, - }; - - static struct platform_device sg060_device_tilt = { - .name = "gpio-tilt-polled", - .id = -1, - .dev = { - .platform_data = &sg060_tilt_pdata, - }, - }; diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 9f082a388388..4791e73839d9 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -268,20 +268,6 @@ config INPUT_GPIO_BEEPER To compile this driver as a module, choose M here: the module will be called gpio-beeper. -config INPUT_GPIO_TILT_POLLED - tristate "Polled GPIO tilt switch" - depends on GPIOLIB || COMPILE_TEST - select INPUT_POLLDEV - help - This driver implements support for tilt switches connected - to GPIO pins that are not capable of generating interrupts. - - The list of gpios to use and the mapping of their states - to specific angles is done via platform data. - - To compile this driver as a module, choose M here: the - module will be called gpio_tilt_polled. - config INPUT_GPIO_DECODER tristate "Polled GPIO Decoder Input driver" depends on GPIOLIB || COMPILE_TEST diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 4b6118d313fe..a8f61af865aa 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -36,7 +36,6 @@ obj-$(CONFIG_INPUT_DRV2665_HAPTICS) += drv2665.o obj-$(CONFIG_INPUT_DRV2667_HAPTICS) += drv2667.o obj-$(CONFIG_INPUT_GP2A) += gp2ap002a00f.o obj-$(CONFIG_INPUT_GPIO_BEEPER) += gpio-beeper.o -obj-$(CONFIG_INPUT_GPIO_TILT_POLLED) += gpio_tilt_polled.o obj-$(CONFIG_INPUT_GPIO_DECODER) += gpio_decoder.o obj-$(CONFIG_INPUT_HISI_POWERKEY) += hisi_powerkey.o obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o diff --git a/drivers/input/misc/gpio_tilt_polled.c b/drivers/input/misc/gpio_tilt_polled.c deleted file mode 100644 index 6e217a45e39a..000000000000 --- a/drivers/input/misc/gpio_tilt_polled.c +++ /dev/null @@ -1,210 +0,0 @@ -/* - * Driver for tilt switches connected via GPIO lines - * not capable of generating interrupts - * - * Copyright (C) 2011 Heiko Stuebner - * - * based on: drivers/input/keyboard/gpio_keys_polled.c - * - * Copyright (C) 2007-2010 Gabor Juhos - * Copyright (C) 2010 Nuno Goncalves - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define DRV_NAME "gpio-tilt-polled" - -struct gpio_tilt_polled_dev { - struct input_polled_dev *poll_dev; - struct device *dev; - const struct gpio_tilt_platform_data *pdata; - - int last_state; - - int threshold; - int count; -}; - -static void gpio_tilt_polled_poll(struct input_polled_dev *dev) -{ - struct gpio_tilt_polled_dev *tdev = dev->private; - const struct gpio_tilt_platform_data *pdata = tdev->pdata; - struct input_dev *input = dev->input; - struct gpio_tilt_state *tilt_state = NULL; - int state, i; - - if (tdev->count < tdev->threshold) { - tdev->count++; - } else { - state = 0; - for (i = 0; i < pdata->nr_gpios; i++) - state |= (!!gpio_get_value(pdata->gpios[i].gpio) << i); - - if (state != tdev->last_state) { - for (i = 0; i < pdata->nr_states; i++) - if (pdata->states[i].gpios == state) - tilt_state = &pdata->states[i]; - - if (tilt_state) { - for (i = 0; i < pdata->nr_axes; i++) - input_report_abs(input, - pdata->axes[i].axis, - tilt_state->axes[i]); - - input_sync(input); - } - - tdev->count = 0; - tdev->last_state = state; - } - } -} - -static void gpio_tilt_polled_open(struct input_polled_dev *dev) -{ - struct gpio_tilt_polled_dev *tdev = dev->private; - const struct gpio_tilt_platform_data *pdata = tdev->pdata; - - if (pdata->enable) - pdata->enable(tdev->dev); - - /* report initial state of the axes */ - tdev->last_state = -1; - tdev->count = tdev->threshold; - gpio_tilt_polled_poll(tdev->poll_dev); -} - -static void gpio_tilt_polled_close(struct input_polled_dev *dev) -{ - struct gpio_tilt_polled_dev *tdev = dev->private; - const struct gpio_tilt_platform_data *pdata = tdev->pdata; - - if (pdata->disable) - pdata->disable(tdev->dev); -} - -static int gpio_tilt_polled_probe(struct platform_device *pdev) -{ - const struct gpio_tilt_platform_data *pdata = - dev_get_platdata(&pdev->dev); - struct device *dev = &pdev->dev; - struct gpio_tilt_polled_dev *tdev; - struct input_polled_dev *poll_dev; - struct input_dev *input; - int error, i; - - if (!pdata || !pdata->poll_interval) - return -EINVAL; - - tdev = kzalloc(sizeof(struct gpio_tilt_polled_dev), GFP_KERNEL); - if (!tdev) { - dev_err(dev, "no memory for private data\n"); - return -ENOMEM; - } - - error = gpio_request_array(pdata->gpios, pdata->nr_gpios); - if (error) { - dev_err(dev, - "Could not request tilt GPIOs: %d\n", error); - goto err_free_tdev; - } - - poll_dev = input_allocate_polled_device(); - if (!poll_dev) { - dev_err(dev, "no memory for polled device\n"); - error = -ENOMEM; - goto err_free_gpios; - } - - poll_dev->private = tdev; - poll_dev->poll = gpio_tilt_polled_poll; - poll_dev->poll_interval = pdata->poll_interval; - poll_dev->open = gpio_tilt_polled_open; - poll_dev->close = gpio_tilt_polled_close; - - input = poll_dev->input; - - input->name = pdev->name; - input->phys = DRV_NAME"/input0"; - input->dev.parent = dev; - - input->id.bustype = BUS_HOST; - input->id.vendor = 0x0001; - input->id.product = 0x0001; - input->id.version = 0x0100; - - __set_bit(EV_ABS, input->evbit); - for (i = 0; i < pdata->nr_axes; i++) - input_set_abs_params(input, pdata->axes[i].axis, - pdata->axes[i].min, pdata->axes[i].max, - pdata->axes[i].fuzz, pdata->axes[i].flat); - - tdev->threshold = DIV_ROUND_UP(pdata->debounce_interval, - pdata->poll_interval); - - tdev->poll_dev = poll_dev; - tdev->dev = dev; - tdev->pdata = pdata; - - error = input_register_polled_device(poll_dev); - if (error) { - dev_err(dev, "unable to register polled device, err=%d\n", - error); - goto err_free_polldev; - } - - platform_set_drvdata(pdev, tdev); - - return 0; - -err_free_polldev: - input_free_polled_device(poll_dev); -err_free_gpios: - gpio_free_array(pdata->gpios, pdata->nr_gpios); -err_free_tdev: - kfree(tdev); - - return error; -} - -static int gpio_tilt_polled_remove(struct platform_device *pdev) -{ - struct gpio_tilt_polled_dev *tdev = platform_get_drvdata(pdev); - const struct gpio_tilt_platform_data *pdata = tdev->pdata; - - input_unregister_polled_device(tdev->poll_dev); - input_free_polled_device(tdev->poll_dev); - - gpio_free_array(pdata->gpios, pdata->nr_gpios); - - kfree(tdev); - - return 0; -} - -static struct platform_driver gpio_tilt_polled_driver = { - .probe = gpio_tilt_polled_probe, - .remove = gpio_tilt_polled_remove, - .driver = { - .name = DRV_NAME, - }, -}; - -module_platform_driver(gpio_tilt_polled_driver); - -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Heiko Stuebner "); -MODULE_DESCRIPTION("Polled GPIO tilt driver"); -MODULE_ALIAS("platform:" DRV_NAME); diff --git a/include/linux/input/gpio_tilt.h b/include/linux/input/gpio_tilt.h deleted file mode 100644 index f9d932476a80..000000000000 --- a/include/linux/input/gpio_tilt.h +++ /dev/null @@ -1,74 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _INPUT_GPIO_TILT_H -#define _INPUT_GPIO_TILT_H - -/** - * struct gpio_tilt_axis - Axis used by the tilt switch - * @axis: Constant describing the axis, e.g. ABS_X - * @min: minimum value for abs_param - * @max: maximum value for abs_param - * @fuzz: fuzz value for abs_param - * @flat: flat value for abs_param - */ -struct gpio_tilt_axis { - int axis; - int min; - int max; - int fuzz; - int flat; -}; - -/** - * struct gpio_tilt_state - state description - * @gpios: bitfield of gpio target-states for the value - * @axes: array containing the axes settings for the gpio state - * The array indizes must correspond to the axes defined - * in platform_data - * - * This structure describes a supported axis settings - * and the necessary gpio-state which represent it. - * - * The n-th bit in the bitfield describes the state of the n-th GPIO - * from the gpios-array defined in gpio_regulator_config below. - */ -struct gpio_tilt_state { - int gpios; - int *axes; -}; - -/** - * struct gpio_tilt_platform_data - * @gpios: Array containing the gpios determining the tilt state - * @nr_gpios: Number of gpios - * @axes: Array of gpio_tilt_axis descriptions - * @nr_axes: Number of axes - * @states: Array of gpio_tilt_state entries describing - * the gpio state for specific tilts - * @nr_states: Number of states available - * @debounce_interval: debounce ticks interval in msecs - * @poll_interval: polling interval in msecs - for polling driver only - * @enable: callback to enable the tilt switch - * @disable: callback to disable the tilt switch - * - * This structure contains gpio-tilt-switch configuration - * information that must be passed by platform code to the - * gpio-tilt input driver. - */ -struct gpio_tilt_platform_data { - struct gpio *gpios; - int nr_gpios; - - struct gpio_tilt_axis *axes; - int nr_axes; - - struct gpio_tilt_state *states; - int nr_states; - - int debounce_interval; - - unsigned int poll_interval; - int (*enable)(struct device *dev); - void (*disable)(struct device *dev); -}; - -#endif -- cgit v1.2.3 From b8af0b5b928775960ff4b5936cbbc20714e9d921 Mon Sep 17 00:00:00 2001 From: Zhuohua Li Date: Mon, 1 Jan 2018 22:51:47 -0800 Subject: Input: tps65218-pwrbutton - fix a spelling mistake in Kconfig Fix a spelling mistake: buttong -> button Signed-off-by: Zhuohua Li Patchwork-Id: 10134469 Signed-off-by: Dmitry Torokhov --- drivers/input/misc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 4791e73839d9..62a1312a7387 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -454,7 +454,7 @@ config INPUT_TPS65218_PWRBUTTON tristate "TPS65218 Power button driver" depends on (MFD_TPS65217 || MFD_TPS65218) help - Say Y here if you want to enable power buttong reporting for + Say Y here if you want to enable power button reporting for TPS65217 and TPS65218 Power Management IC devices. To compile this driver as a module, choose M here. The module will -- cgit v1.2.3 From 92a37438ced77a8acb380457e0a28970f1ae9472 Mon Sep 17 00:00:00 2001 From: Jeffrey Lin Date: Thu, 4 Jan 2018 21:35:23 -0800 Subject: Input: raydium_i2c_ts - include hardware version in firmware name Add hardware version to the firmware file name to handle scenarios where single system image supports variety of devices. Signed-off-by: Jeffrey Lin Patchwork-Id: 10127677 Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/raydium_i2c_ts.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c index 100538d64fff..d1c09e6a2cb6 100644 --- a/drivers/input/touchscreen/raydium_i2c_ts.c +++ b/drivers/input/touchscreen/raydium_i2c_ts.c @@ -752,13 +752,20 @@ static int raydium_i2c_fw_update(struct raydium_data *ts) { struct i2c_client *client = ts->client; const struct firmware *fw = NULL; - const char *fw_file = "raydium.fw"; + char *fw_file; int error; + fw_file = kasprintf(GFP_KERNEL, "raydium_%#04x.fw", + le32_to_cpu(ts->info.hw_ver)); + if (!fw_file) + return -ENOMEM; + + dev_dbg(&client->dev, "firmware name: %s\n", fw_file); + error = request_firmware(&fw, fw_file, &client->dev); if (error) { dev_err(&client->dev, "Unable to open firmware %s\n", fw_file); - return error; + goto out_free_fw_file; } disable_irq(client->irq); @@ -787,6 +794,9 @@ out_enable_irq: release_firmware(fw); +out_free_fw_file: + kfree(fw_file); + return error; } -- cgit v1.2.3 From 28f9fe57ddb2b3a3ce34cf46d30b56b967914ba8 Mon Sep 17 00:00:00 2001 From: Pravin Shedge Date: Tue, 5 Dec 2017 10:20:43 -0800 Subject: Input: synaptic_rmi4 - remove duplicate include in F34 This duplicate include has been found with scripts/checkincludes.pl but it has been removed manually to avoid removing false positives. Signed-off-by: Pravin Shedge Patchwork-Id: 10092051 Acked-by: Benjamin Tissoires Signed-off-by: Dmitry Torokhov --- drivers/input/rmi4/rmi_f34.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/rmi4/rmi_f34.c b/drivers/input/rmi4/rmi_f34.c index 4cfe9703a8e7..f1f5ac539d5d 100644 --- a/drivers/input/rmi4/rmi_f34.c +++ b/drivers/input/rmi4/rmi_f34.c @@ -11,7 +11,6 @@ #include #include #include -#include #include #include "rmi_driver.h" -- cgit v1.2.3 From da7bdec455b160771f0343e38dc538791f2b2a99 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Mon, 8 Jan 2018 17:10:46 -0800 Subject: Input: cyapa - remove duplicated macro definitions Apart from whitespace differences, this block of macros is repeated twice: $ x=./drivers/input/mouse/cyapa_gen3.c; diff -w -u <(sed -n '139,181p' $x) <(sed -n '182,224p' $x) $ Signed-off-by: Rasmus Villemoes Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/cyapa_gen3.c | 43 ---------------------------------------- 1 file changed, 43 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/mouse/cyapa_gen3.c b/drivers/input/mouse/cyapa_gen3.c index 1cbfa4a6e830..076dda4a66da 100644 --- a/drivers/input/mouse/cyapa_gen3.c +++ b/drivers/input/mouse/cyapa_gen3.c @@ -136,49 +136,6 @@ static const u8 bl_exit[] = { 0x00, 0xff, 0xa5, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }; - /* for byte read/write command */ -#define CMD_RESET 0 -#define CMD_POWER_MODE 1 -#define CMD_DEV_STATUS 2 -#define CMD_REPORT_MAX_BASELINE 3 -#define CMD_REPORT_MIN_BASELINE 4 -#define SMBUS_BYTE_CMD(cmd) (((cmd) & 0x3f) << 1) -#define CYAPA_SMBUS_RESET SMBUS_BYTE_CMD(CMD_RESET) -#define CYAPA_SMBUS_POWER_MODE SMBUS_BYTE_CMD(CMD_POWER_MODE) -#define CYAPA_SMBUS_DEV_STATUS SMBUS_BYTE_CMD(CMD_DEV_STATUS) -#define CYAPA_SMBUS_MAX_BASELINE SMBUS_BYTE_CMD(CMD_REPORT_MAX_BASELINE) -#define CYAPA_SMBUS_MIN_BASELINE SMBUS_BYTE_CMD(CMD_REPORT_MIN_BASELINE) - - /* for group registers read/write command */ -#define REG_GROUP_DATA 0 -#define REG_GROUP_CMD 2 -#define REG_GROUP_QUERY 3 -#define SMBUS_GROUP_CMD(grp) (0x80 | (((grp) & 0x07) << 3)) -#define CYAPA_SMBUS_GROUP_DATA SMBUS_GROUP_CMD(REG_GROUP_DATA) -#define CYAPA_SMBUS_GROUP_CMD SMBUS_GROUP_CMD(REG_GROUP_CMD) -#define CYAPA_SMBUS_GROUP_QUERY SMBUS_GROUP_CMD(REG_GROUP_QUERY) - - /* for register block read/write command */ -#define CMD_BL_STATUS 0 -#define CMD_BL_HEAD 1 -#define CMD_BL_CMD 2 -#define CMD_BL_DATA 3 -#define CMD_BL_ALL 4 -#define CMD_BLK_PRODUCT_ID 5 -#define CMD_BLK_HEAD 6 -#define SMBUS_BLOCK_CMD(cmd) (0xc0 | (((cmd) & 0x1f) << 1)) - -/* register block read/write command in bootloader mode */ -#define CYAPA_SMBUS_BL_STATUS SMBUS_BLOCK_CMD(CMD_BL_STATUS) -#define CYAPA_SMBUS_BL_HEAD SMBUS_BLOCK_CMD(CMD_BL_HEAD) -#define CYAPA_SMBUS_BL_CMD SMBUS_BLOCK_CMD(CMD_BL_CMD) -#define CYAPA_SMBUS_BL_DATA SMBUS_BLOCK_CMD(CMD_BL_DATA) -#define CYAPA_SMBUS_BL_ALL SMBUS_BLOCK_CMD(CMD_BL_ALL) - -/* register block read/write command in operational mode */ -#define CYAPA_SMBUS_BLK_PRODUCT_ID SMBUS_BLOCK_CMD(CMD_BLK_PRODUCT_ID) -#define CYAPA_SMBUS_BLK_HEAD SMBUS_BLOCK_CMD(CMD_BLK_HEAD) - /* for byte read/write command */ #define CMD_RESET 0 #define CMD_POWER_MODE 1 -- cgit v1.2.3 From eca3be9b95ac7cf9442654a54962859d74f8e38a Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 9 Jan 2018 11:34:15 -0800 Subject: Input: silead - add support for capactive home button found on some x86 tablets On some x86 tablets with a silead touchscreen the windows logo on the front is a capacitive home button. Touching this button results in a touch with bits 12-15 of the Y coordinates set, while normally only the lower 12 are used. Detect this and report a KEY_LEFTMETA press when this happens. Note for now we only respond to the Y coordinate bits 12-15 containing 0x01, on some tablets *without* a capacative button I've noticed these bits containing 0x04 when crossing the edges of the screen. Acked-by: Rob Herring Signed-off-by: Hans de Goede Signed-off-by: Dmitry Torokhov --- .../bindings/input/touchscreen/silead_gsl1680.txt | 2 + drivers/input/touchscreen/silead.c | 46 ++++++++++++++++------ 2 files changed, 37 insertions(+), 11 deletions(-) (limited to 'drivers/input') diff --git a/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt b/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt index 6aa625e0cb8d..84752de12412 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/silead_gsl1680.txt @@ -23,6 +23,8 @@ Optional properties: - touchscreen-inverted-y : See touchscreen.txt - touchscreen-swapped-x-y : See touchscreen.txt - silead,max-fingers : maximum number of fingers the touchscreen can detect +- silead,home-button : Boolean, set to true on devices which have a + capacitive home-button build into the touchscreen - vddio-supply : regulator phandle for controller VDDIO - avdd-supply : regulator phandle for controller AVDD diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c index 0dbcf105f7db..646b1e768e6b 100644 --- a/drivers/input/touchscreen/silead.c +++ b/drivers/input/touchscreen/silead.c @@ -56,7 +56,7 @@ #define SILEAD_POINT_Y_MSB_OFF 0x01 #define SILEAD_POINT_X_OFF 0x02 #define SILEAD_POINT_X_MSB_OFF 0x03 -#define SILEAD_TOUCH_ID_MASK 0xF0 +#define SILEAD_EXTRA_DATA_MASK 0xF0 #define SILEAD_CMD_SLEEP_MIN 10000 #define SILEAD_CMD_SLEEP_MAX 20000 @@ -109,6 +109,9 @@ static int silead_ts_request_input_dev(struct silead_ts_data *data) INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK); + if (device_property_read_bool(dev, "silead,home-button")) + input_set_capability(data->input, EV_KEY, KEY_LEFTMETA); + data->input->name = SILEAD_TS_NAME; data->input->phys = "input/ts"; data->input->id.bustype = BUS_I2C; @@ -139,7 +142,8 @@ static void silead_ts_read_data(struct i2c_client *client) struct input_dev *input = data->input; struct device *dev = &client->dev; u8 *bufp, buf[SILEAD_TS_DATA_LEN]; - int touch_nr, error, i; + int touch_nr, softbutton, error, i; + bool softbutton_pressed = false; error = i2c_smbus_read_i2c_block_data(client, SILEAD_REG_DATA, SILEAD_TS_DATA_LEN, buf); @@ -148,21 +152,40 @@ static void silead_ts_read_data(struct i2c_client *client) return; } - touch_nr = buf[0]; - if (touch_nr > data->max_fingers) { + if (buf[0] > data->max_fingers) { dev_warn(dev, "More touches reported then supported %d > %d\n", - touch_nr, data->max_fingers); - touch_nr = data->max_fingers; + buf[0], data->max_fingers); + buf[0] = data->max_fingers; } + touch_nr = 0; bufp = buf + SILEAD_POINT_DATA_LEN; - for (i = 0; i < touch_nr; i++, bufp += SILEAD_POINT_DATA_LEN) { - /* Bits 4-7 are the touch id */ - data->id[i] = (bufp[SILEAD_POINT_X_MSB_OFF] & - SILEAD_TOUCH_ID_MASK) >> 4; - touchscreen_set_mt_pos(&data->pos[i], &data->prop, + for (i = 0; i < buf[0]; i++, bufp += SILEAD_POINT_DATA_LEN) { + softbutton = (bufp[SILEAD_POINT_Y_MSB_OFF] & + SILEAD_EXTRA_DATA_MASK) >> 4; + + if (softbutton) { + /* + * For now only respond to softbutton == 0x01, some + * tablets *without* a capacative button send 0x04 + * when crossing the edges of the screen. + */ + if (softbutton == 0x01) + softbutton_pressed = true; + + continue; + } + + /* + * Bits 4-7 are the touch id, note not all models have + * hardware touch ids so atm we don't use these. + */ + data->id[touch_nr] = (bufp[SILEAD_POINT_X_MSB_OFF] & + SILEAD_EXTRA_DATA_MASK) >> 4; + touchscreen_set_mt_pos(&data->pos[touch_nr], &data->prop, get_unaligned_le16(&bufp[SILEAD_POINT_X_OFF]) & 0xfff, get_unaligned_le16(&bufp[SILEAD_POINT_Y_OFF]) & 0xfff); + touch_nr++; } input_mt_assign_slots(input, data->slots, data->pos, touch_nr, 0); @@ -178,6 +201,7 @@ static void silead_ts_read_data(struct i2c_client *client) } input_mt_sync_frame(input); + input_report_key(input, KEY_LEFTMETA, softbutton_pressed); input_sync(input); } -- cgit v1.2.3 From 152194fe9c3f03232b9c0d0264793a7fa4af82f8 Mon Sep 17 00:00:00 2001 From: Deepa Dinamani Date: Sun, 7 Jan 2018 17:44:42 -0800 Subject: Input: extend usable life of event timestamps to 2106 on 32 bit systems The input events use struct timeval to store event time, unfortunately this structure is not y2038 safe and is being replaced in kernel with y2038 safe structures. Because of ABI concerns we can not change the size or the layout of structure input_event, so we opt to re-interpreting the 'seconds' part of timestamp as an unsigned value, effectively doubling the range of values, to year 2106. Newer glibc that has support for 32 bit applications to use 64 bit time_t supplies __USE_TIME_BITS64 define [1], that we can use to present the userspace with updated input_event layout. The updated layout will cause the compile time breakage, alerting applications and distributions maintainers to the issue. Existing 32 binaries will continue working without any changes until 2038. Ultimately userspace applications should switch to using monotonic or boot time clocks, as realtime clock is not very well suited for input event timestamps as it can go backwards (see a80b83b7b8 "Input: evdev - add CLOCK_BOOTTIME support" by by John Stultz). With monotonic clock the practical range of reported times will always fit into the pair of 32 bit values, as we do not expect any system to stay up for a hundred years without a single reboot. [1] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign Suggested-by: Arnd Bergmann Signed-off-by: Deepa Dinamani Acked-by: Peter Hutterer Patchwork-Id: 10148083 Signed-off-by: Dmitry Torokhov --- drivers/input/evdev.c | 20 +++++++++++++------- drivers/input/input-compat.c | 8 ++++---- drivers/input/input-compat.h | 3 ++- drivers/input/misc/uinput.c | 4 ++-- include/uapi/linux/input.h | 11 +++++++++++ 5 files changed, 32 insertions(+), 14 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 925571475005..116088fc3621 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -135,10 +135,7 @@ static void __evdev_flush_queue(struct evdev_client *client, unsigned int type) continue; } else if (head != i) { /* move entry to fill the gap */ - client->buffer[head].time = ev->time; - client->buffer[head].type = ev->type; - client->buffer[head].code = ev->code; - client->buffer[head].value = ev->value; + client->buffer[head] = *ev; } num++; @@ -157,6 +154,7 @@ static void __evdev_queue_syn_dropped(struct evdev_client *client) { struct input_event ev; ktime_t time; + struct timespec64 ts; time = client->clk_type == EV_CLK_REAL ? ktime_get_real() : @@ -164,7 +162,9 @@ static void __evdev_queue_syn_dropped(struct evdev_client *client) ktime_get() : ktime_get_boottime(); - ev.time = ktime_to_timeval(time); + ts = ktime_to_timespec64(time); + ev.input_event_sec = ts.tv_sec; + ev.input_event_usec = ts.tv_nsec / NSEC_PER_USEC; ev.type = EV_SYN; ev.code = SYN_DROPPED; ev.value = 0; @@ -241,7 +241,10 @@ static void __pass_event(struct evdev_client *client, */ client->tail = (client->head - 2) & (client->bufsize - 1); - client->buffer[client->tail].time = event->time; + client->buffer[client->tail].input_event_sec = + event->input_event_sec; + client->buffer[client->tail].input_event_usec = + event->input_event_usec; client->buffer[client->tail].type = EV_SYN; client->buffer[client->tail].code = SYN_DROPPED; client->buffer[client->tail].value = 0; @@ -262,12 +265,15 @@ static void evdev_pass_values(struct evdev_client *client, struct evdev *evdev = client->evdev; const struct input_value *v; struct input_event event; + struct timespec64 ts; bool wakeup = false; if (client->revoked) return; - event.time = ktime_to_timeval(ev_time[client->clk_type]); + ts = ktime_to_timespec64(ev_time[client->clk_type]); + event.input_event_sec = ts.tv_sec; + event.input_event_usec = ts.tv_nsec / NSEC_PER_USEC; /* Interrupts are disabled, just acquire the lock. */ spin_lock(&client->buffer_lock); diff --git a/drivers/input/input-compat.c b/drivers/input/input-compat.c index 2186f71c9fe5..fda8d6d2a268 100644 --- a/drivers/input/input-compat.c +++ b/drivers/input/input-compat.c @@ -24,8 +24,8 @@ int input_event_from_user(const char __user *buffer, sizeof(struct input_event_compat))) return -EFAULT; - event->time.tv_sec = compat_event.time.tv_sec; - event->time.tv_usec = compat_event.time.tv_usec; + event->input_event_sec = compat_event.sec; + event->input_event_usec = compat_event.usec; event->type = compat_event.type; event->code = compat_event.code; event->value = compat_event.value; @@ -44,8 +44,8 @@ int input_event_to_user(char __user *buffer, if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) { struct input_event_compat compat_event; - compat_event.time.tv_sec = event->time.tv_sec; - compat_event.time.tv_usec = event->time.tv_usec; + compat_event.sec = event->input_event_sec; + compat_event.usec = event->input_event_usec; compat_event.type = event->type; compat_event.code = event->code; compat_event.value = event->value; diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h index 1563160a7af3..08cd755e73fd 100644 --- a/drivers/input/input-compat.h +++ b/drivers/input/input-compat.h @@ -18,7 +18,8 @@ #ifdef CONFIG_COMPAT struct input_event_compat { - struct compat_timeval time; + compat_ulong_t sec; + compat_ulong_t usec; __u16 type; __u16 code; __s32 value; diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index d521aecbc078..cb4bdbd3e9e2 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -90,8 +90,8 @@ static int uinput_dev_event(struct input_dev *dev, udev->buff[udev->head].code = code; udev->buff[udev->head].value = value; ktime_get_ts64(&ts); - udev->buff[udev->head].time.tv_sec = ts.tv_sec; - udev->buff[udev->head].time.tv_usec = ts.tv_nsec / NSEC_PER_USEC; + udev->buff[udev->head].input_event_sec = ts.tv_sec; + udev->buff[udev->head].input_event_usec = ts.tv_nsec / NSEC_PER_USEC; udev->head = (udev->head + 1) % UINPUT_BUFFER_SIZE; wake_up_interruptible(&udev->waitq); diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h index 8c5a0bf6ee35..7288a7c573cc 100644 --- a/include/uapi/linux/input.h +++ b/include/uapi/linux/input.h @@ -21,10 +21,21 @@ /* * The event structure itself + * Note that __USE_TIME_BITS64 is defined by libc based on + * application's request to use 64 bit time_t. */ struct input_event { +#if (__BITS_PER_LONG != 32 || !defined(__USE_TIME_BITS64)) && !defined(__KERNEL) struct timeval time; +#define input_event_sec time.tv_sec +#define input_event_usec time.tv_usec +#else + __kernel_ulong_t __sec; + __kernel_ulong_t __usec; +#define input_event_sec __sec +#define input_event_usec __usec +#endif __u16 type; __u16 code; __s32 value; -- cgit v1.2.3 From faec44b6838312484d63e82286087cf2d5ebb891 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 12 Jan 2018 00:36:48 -0800 Subject: Input: goodix - disable IRQs while suspended We should not try to do any i2c transfers before the controller is resumed (which happens before our resume method gets called). So we need to disable our IRQ while suspended to enforce this. The code paths for devices with GPIOs for the int and reset pins already disable the IRQ the through goodix_free_irq(). This commit also disables the IRQ while suspended for devices without GPIOs for the int and reset pins. This fixes the i2c bus sometimes getting stuck after a suspend/resume causing the touchscreen to sometimes not work after a suspend/resume. This has been tested on a GPD pocked device. BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10 BugLink: https://www.reddit.com/r/GPDPocket/comments/7niut2/fix_for_broken_touch_after_resume_all_linux/ Tested-by: Hans de Goede Signed-off-by: Hans de Goede Reviewed-by: Bastien Nocera Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/goodix.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c index 69d0b8cbc71f..ecec8eb17f28 100644 --- a/drivers/input/touchscreen/goodix.c +++ b/drivers/input/touchscreen/goodix.c @@ -878,8 +878,10 @@ static int __maybe_unused goodix_suspend(struct device *dev) int error; /* We need gpio pins to suspend/resume */ - if (!ts->gpiod_int || !ts->gpiod_rst) + if (!ts->gpiod_int || !ts->gpiod_rst) { + disable_irq(client->irq); return 0; + } wait_for_completion(&ts->firmware_loading_complete); @@ -919,8 +921,10 @@ static int __maybe_unused goodix_resume(struct device *dev) struct goodix_ts_data *ts = i2c_get_clientdata(client); int error; - if (!ts->gpiod_int || !ts->gpiod_rst) + if (!ts->gpiod_int || !ts->gpiod_rst) { + enable_irq(client->irq); return 0; + } /* * Exit sleep mode by outputting HIGH level to INT pin -- cgit v1.2.3 From 2bc4298f59d2f15175bb568e2d356b5912d0cdd9 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 9 Jan 2018 13:44:46 -0800 Subject: Input: psmouse - fix Synaptics detection when protocol is disabled When Synaptics protocol is disabled, we still need to try and detect the hardware, so we can switch to SMBus device if SMbus is detected, or we know that it is Synaptics device and reset it properly for the bare PS/2 protocol. Fixes: c378b5119eb0 ("Input: psmouse - factor out common protocol probing code") Reported-by: Matteo Croce Tested-by: Matteo Croce Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/psmouse-base.c | 34 +++++++++++++++++++++------------- 1 file changed, 21 insertions(+), 13 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index 6a5649e52eed..8ac9e03c05b4 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -975,6 +975,21 @@ static void psmouse_apply_defaults(struct psmouse *psmouse) psmouse->pt_deactivate = NULL; } +static bool psmouse_do_detect(int (*detect)(struct psmouse *, bool), + struct psmouse *psmouse, bool allow_passthrough, + bool set_properties) +{ + if (psmouse->ps2dev.serio->id.type == SERIO_PS_PSTHRU && + !allow_passthrough) { + return false; + } + + if (set_properties) + psmouse_apply_defaults(psmouse); + + return detect(psmouse, set_properties) == 0; +} + static bool psmouse_try_protocol(struct psmouse *psmouse, enum psmouse_type type, unsigned int *max_proto, @@ -986,15 +1001,8 @@ static bool psmouse_try_protocol(struct psmouse *psmouse, if (!proto) return false; - if (psmouse->ps2dev.serio->id.type == SERIO_PS_PSTHRU && - !proto->try_passthru) { - return false; - } - - if (set_properties) - psmouse_apply_defaults(psmouse); - - if (proto->detect(psmouse, set_properties) != 0) + if (!psmouse_do_detect(proto->detect, psmouse, proto->try_passthru, + set_properties)) return false; if (set_properties && proto->init && init_allowed) { @@ -1027,8 +1035,8 @@ static int psmouse_extensions(struct psmouse *psmouse, * Always check for focaltech, this is safe as it uses pnp-id * matching. */ - if (psmouse_try_protocol(psmouse, PSMOUSE_FOCALTECH, - &max_proto, set_properties, false)) { + if (psmouse_do_detect(focaltech_detect, + psmouse, false, set_properties)) { if (max_proto > PSMOUSE_IMEX && IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH) && (!set_properties || focaltech_init(psmouse) == 0)) { @@ -1074,8 +1082,8 @@ static int psmouse_extensions(struct psmouse *psmouse, * probing for IntelliMouse. */ if (max_proto > PSMOUSE_PS2 && - psmouse_try_protocol(psmouse, PSMOUSE_SYNAPTICS, &max_proto, - set_properties, false)) { + psmouse_do_detect(synaptics_detect, + psmouse, false, set_properties)) { synaptics_hardware = true; if (max_proto > PSMOUSE_IMEX) { -- cgit v1.2.3 From 19eb4ed1141bd1096b9bc84ba9c4d03d5830c143 Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Tue, 16 Jan 2018 15:20:58 -0800 Subject: Input: synaptics - reset the ABS_X/Y fuzz after initializing MT axes input_mt_init_slots() resets the ABS_X/Y fuzz to 0 and expects the driver to call input_mt_report_pointer_emulation(). That is based on the MT position bits which are already defuzzed - hence a fuzz of 0. In the case of synaptics semi-mt devices, we report the ABS_X/Y axes manually. This results in the MT position being defuzzed but the single-touch emulation missing that defuzzing. Work around this by re-initializing the ABS_X/Y axes after the MT axis to get the same fuzz value back. https://bugs.freedesktop.org/show_bug.cgi?id=104533 Signed-off-by: Peter Hutterer Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/synaptics.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index ee5466a374bf..a246fc686bb7 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -1280,6 +1280,16 @@ static void set_input_params(struct psmouse *psmouse, INPUT_MT_POINTER | (cr48_profile_sensor ? INPUT_MT_TRACK : INPUT_MT_SEMI_MT)); + + /* + * For semi-mt devices we send ABS_X/Y ourselves instead of + * input_mt_report_pointer_emulation. But + * input_mt_init_slots() resets the fuzz to 0, leading to a + * filtered ABS_MT_POSITION_X but an unfiltered ABS_X + * position. Let's re-initialize ABS_X/Y here. + */ + if (!cr48_profile_sensor) + set_abs_position_params(dev, &priv->info, ABS_X, ABS_Y); } if (SYN_CAP_PALMDETECT(info->capabilities)) -- cgit v1.2.3 From 9f1d1ea3e06aa4f0b88d724cee890973f8f8727b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 16 Jan 2018 16:36:48 -0800 Subject: Input: remove unneeded DRIVER_LICENSE #defines There is no need to #define the license of the driver, just put it in the MODULE_LICENSE() line directly as a text string. This allows tools that check that the module license matches the source code license to work properly, as there is no need to unwind the unneeded dereference. For some of these drivers, the #define is just a few lines above the MODULE_LICENSE() line, which is extra pointless. Reported-by: Philippe Ombredanne Signed-off-by: Greg Kroah-Hartman Reviewed-by: Philippe Ombredanne Signed-off-by: Dmitry Torokhov --- drivers/input/misc/keyspan_remote.c | 3 +-- drivers/input/tablet/acecad.c | 3 +-- drivers/input/tablet/hanwang.c | 3 +-- drivers/input/tablet/kbtab.c | 3 +-- 4 files changed, 4 insertions(+), 8 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/keyspan_remote.c b/drivers/input/misc/keyspan_remote.c index 77c47d6325fe..4f13b2f7bf4f 100644 --- a/drivers/input/misc/keyspan_remote.c +++ b/drivers/input/misc/keyspan_remote.c @@ -20,7 +20,6 @@ #define DRIVER_VERSION "v0.1" #define DRIVER_AUTHOR "Michael Downey " #define DRIVER_DESC "Driver for the USB Keyspan remote control." -#define DRIVER_LICENSE "GPL" /* Parameters that can be passed to the driver. */ static int debug; @@ -592,4 +591,4 @@ module_usb_driver(keyspan_driver); MODULE_DEVICE_TABLE(usb, keyspan_table); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE(DRIVER_LICENSE); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/tablet/acecad.c b/drivers/input/tablet/acecad.c index aebb3f9090cd..fcb67c7cd86b 100644 --- a/drivers/input/tablet/acecad.c +++ b/drivers/input/tablet/acecad.c @@ -35,12 +35,11 @@ */ #define DRIVER_VERSION "v3.2" #define DRIVER_DESC "USB Acecad Flair tablet driver" -#define DRIVER_LICENSE "GPL" #define DRIVER_AUTHOR "Edouard TISSERANT " MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE(DRIVER_LICENSE); +MODULE_LICENSE("GPL"); #define USB_VENDOR_ID_ACECAD 0x0460 #define USB_DEVICE_ID_FLAIR 0x0004 diff --git a/drivers/input/tablet/hanwang.c b/drivers/input/tablet/hanwang.c index df4bea96d7ed..70cb26bbfe1d 100644 --- a/drivers/input/tablet/hanwang.c +++ b/drivers/input/tablet/hanwang.c @@ -30,11 +30,10 @@ #define DRIVER_AUTHOR "Xing Wei " #define DRIVER_DESC "USB Hanwang tablet driver" -#define DRIVER_LICENSE "GPL" MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE(DRIVER_LICENSE); +MODULE_LICENSE("GPL"); #define USB_VENDOR_ID_HANWANG 0x0b57 #define HANWANG_TABLET_INT_CLASS 0x0003 diff --git a/drivers/input/tablet/kbtab.c b/drivers/input/tablet/kbtab.c index a41c3ff7c9af..bee18e33e261 100644 --- a/drivers/input/tablet/kbtab.c +++ b/drivers/input/tablet/kbtab.c @@ -15,11 +15,10 @@ #define DRIVER_VERSION "v0.0.2" #define DRIVER_AUTHOR "Josh Myer " #define DRIVER_DESC "USB KB Gear JamStudio Tablet driver" -#define DRIVER_LICENSE "GPL" MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE(DRIVER_LICENSE); +MODULE_LICENSE("GPL"); #define USB_VENDOR_ID_KBGEAR 0x084e -- cgit v1.2.3 From b6492b091784ac4052952e43c7cdb0be12b07fee Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 16 Jan 2018 16:41:37 -0800 Subject: Input: synaptics_rmi4 - remove unneeded MODULE_VERSION() usage MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the rmi4 drivers. Now that this is gone, the RMI_DRIVER_VERSION macro was also removed as it was pointless. Signed-off-by: Greg Kroah-Hartman Signed-off-by: Dmitry Torokhov --- drivers/input/rmi4/rmi_bus.c | 1 - drivers/input/rmi4/rmi_driver.h | 2 -- drivers/input/rmi4/rmi_i2c.c | 1 - drivers/input/rmi4/rmi_spi.c | 1 - 4 files changed, 5 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/rmi4/rmi_bus.c b/drivers/input/rmi4/rmi_bus.c index ae1bffe45c75..c5fa53adba8d 100644 --- a/drivers/input/rmi4/rmi_bus.c +++ b/drivers/input/rmi4/rmi_bus.c @@ -427,4 +427,3 @@ MODULE_AUTHOR("Christopher Heiny #include "rmi_bus.h" -#define RMI_DRIVER_VERSION "2.0" - #define SYNAPTICS_INPUT_DEVICE_NAME "Synaptics RMI4 Touch Sensor" #define SYNAPTICS_VENDOR_ID 0x06cb diff --git a/drivers/input/rmi4/rmi_i2c.c b/drivers/input/rmi4/rmi_i2c.c index e28663ef9e5a..d4b3f9d0dc2e 100644 --- a/drivers/input/rmi4/rmi_i2c.c +++ b/drivers/input/rmi4/rmi_i2c.c @@ -391,4 +391,3 @@ MODULE_AUTHOR("Christopher Heiny "); MODULE_AUTHOR("Andrew Duggan "); MODULE_DESCRIPTION("RMI I2C driver"); MODULE_LICENSE("GPL"); -MODULE_VERSION(RMI_DRIVER_VERSION); diff --git a/drivers/input/rmi4/rmi_spi.c b/drivers/input/rmi4/rmi_spi.c index d97a85907ed6..76edbf2c1bce 100644 --- a/drivers/input/rmi4/rmi_spi.c +++ b/drivers/input/rmi4/rmi_spi.c @@ -528,4 +528,3 @@ MODULE_AUTHOR("Christopher Heiny "); MODULE_AUTHOR("Andrew Duggan "); MODULE_DESCRIPTION("RMI SPI driver"); MODULE_LICENSE("GPL"); -MODULE_VERSION(RMI_DRIVER_VERSION); -- cgit v1.2.3 From 932553c414eb3ca817ad3fed57cac7c7cb49edf2 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 16 Jan 2018 16:42:10 -0800 Subject: Input: pmic8xxx-keypad - remove unneeded MODULE_VERSION() usage MODULE_VERSION is useless for in-kernel drivers, so remove the use of it in the pmic8xxx-keyboard driver. Signed-off-by: Greg Kroah-Hartman Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/pmic8xxx-keypad.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/pmic8xxx-keypad.c b/drivers/input/keyboard/pmic8xxx-keypad.c index 97c5424f49b9..98b24ed18752 100644 --- a/drivers/input/keyboard/pmic8xxx-keypad.c +++ b/drivers/input/keyboard/pmic8xxx-keypad.c @@ -697,6 +697,5 @@ module_platform_driver(pmic8xxx_kp_driver); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("PMIC8XXX keypad driver"); -MODULE_VERSION("1.0"); MODULE_ALIAS("platform:pmic8xxx_keypad"); MODULE_AUTHOR("Trilok Soni "); -- cgit v1.2.3 From 98c6a3aa4190fa6e5726fbb76b0515dcb645985c Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 16 Jan 2018 16:42:40 -0800 Subject: Input: elan_i2c - remove unneeded MODULE_VERSION() usage MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the elan_i2c mouse driver. Now that this is gone, the ELAN_DRIVER_VERSION define was also removed as it was pointless. Signed-off-by: Greg Kroah-Hartman Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/elan_i2c_core.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index 2690a8223841..70fe287f90c0 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -42,7 +42,6 @@ #include "elan_i2c.h" #define DRIVER_NAME "elan_i2c" -#define ELAN_DRIVER_VERSION "1.6.3" #define ELAN_VENDOR_ID 0x04f3 #define ETP_MAX_PRESSURE 255 #define ETP_FWIDTH_REDUCE 90 @@ -1293,4 +1292,3 @@ module_i2c_driver(elan_driver); MODULE_AUTHOR("Duson Lin "); MODULE_DESCRIPTION("Elan I2C/SMBus Touchpad driver"); MODULE_LICENSE("GPL"); -MODULE_VERSION(ELAN_DRIVER_VERSION); -- cgit v1.2.3 From 4f7fc9b561eab242152f928ff6be1d03e7259e84 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 16 Jan 2018 16:43:00 -0800 Subject: Input: remove unneeded MODULE_VERSION() usage in touchscreen drivers MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the touchscreen drivers. Along with this, some DRV_VERSION macros were removed as they are also pointless. Signed-off-by: Greg Kroah-Hartman Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/colibri-vf50-ts.c | 2 -- drivers/input/touchscreen/elants_i2c.c | 2 -- drivers/input/touchscreen/melfas_mip4.c | 1 - drivers/input/touchscreen/wdt87xx_i2c.c | 2 -- 4 files changed, 7 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/colibri-vf50-ts.c b/drivers/input/touchscreen/colibri-vf50-ts.c index 69c08acae264..82ca5ab65cec 100644 --- a/drivers/input/touchscreen/colibri-vf50-ts.c +++ b/drivers/input/touchscreen/colibri-vf50-ts.c @@ -28,7 +28,6 @@ #include #define DRIVER_NAME "colibri-vf50-ts" -#define DRV_VERSION "1.0" #define VF_ADC_MAX ((1 << 12) - 1) @@ -382,4 +381,3 @@ module_platform_driver(vf50_touch_driver); MODULE_AUTHOR("Sanchayan Maity"); MODULE_DESCRIPTION("Colibri VF50 Touchscreen driver"); MODULE_LICENSE("GPL"); -MODULE_VERSION(DRV_VERSION); diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c index e102d7764bc2..a174b8c79ef5 100644 --- a/drivers/input/touchscreen/elants_i2c.c +++ b/drivers/input/touchscreen/elants_i2c.c @@ -44,7 +44,6 @@ /* Device, Driver information */ #define DEVICE_NAME "elants_i2c" -#define DRV_VERSION "1.0.9" /* Convert from rows or columns into resolution */ #define ELAN_TS_RESOLUTION(n, m) (((n) - 1) * (m)) @@ -1402,5 +1401,4 @@ module_i2c_driver(elants_i2c_driver); MODULE_AUTHOR("Scott Liu "); MODULE_DESCRIPTION("Elan I2c Touchscreen driver"); -MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/melfas_mip4.c b/drivers/input/touchscreen/melfas_mip4.c index 6892f0e28918..430a2bc5f7ca 100644 --- a/drivers/input/touchscreen/melfas_mip4.c +++ b/drivers/input/touchscreen/melfas_mip4.c @@ -1611,6 +1611,5 @@ static struct i2c_driver mip4_driver = { module_i2c_driver(mip4_driver); MODULE_DESCRIPTION("MELFAS MIP4 Touchscreen"); -MODULE_VERSION("2016.10.31"); MODULE_AUTHOR("Sangwon Jee "); MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c index d351efd18f89..20f7f3902757 100644 --- a/drivers/input/touchscreen/wdt87xx_i2c.c +++ b/drivers/input/touchscreen/wdt87xx_i2c.c @@ -23,7 +23,6 @@ #include #define WDT87XX_NAME "wdt87xx_i2c" -#define WDT87XX_DRV_VER "0.9.8" #define WDT87XX_FW_NAME "wdt87xx_fw.bin" #define WDT87XX_CFG_NAME "wdt87xx_cfg.bin" @@ -1183,5 +1182,4 @@ module_i2c_driver(wdt87xx_driver); MODULE_AUTHOR("HN Chen "); MODULE_DESCRIPTION("WeidaHiTech WDT87XX Touchscreen driver"); -MODULE_VERSION(WDT87XX_DRV_VER); MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 141fc3fcfde3ea2b2ec71c037e8d11c1cdea1676 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 16 Jan 2018 16:43:52 -0800 Subject: Input: remove unneeded MODULE_VERSION() usage in misc input drivers MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the misc input drivers. Along with this, some DRIVER_VERSION macros were removed as they are also pointless. Signed-off-by: Greg Kroah-Hartman Signed-off-by: Dmitry Torokhov --- drivers/input/misc/apanel.c | 2 -- drivers/input/misc/ati_remote2.c | 2 -- drivers/input/misc/uinput.c | 1 - 3 files changed, 5 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/apanel.c b/drivers/input/misc/apanel.c index aad1df04c854..094bddf56755 100644 --- a/drivers/input/misc/apanel.c +++ b/drivers/input/misc/apanel.c @@ -26,7 +26,6 @@ #include #define APANEL_NAME "Fujitsu Application Panel" -#define APANEL_VERSION "1.3.1" #define APANEL "apanel" /* How often we poll keys - msecs */ @@ -345,7 +344,6 @@ module_exit(apanel_cleanup); MODULE_AUTHOR("Stephen Hemminger "); MODULE_DESCRIPTION(APANEL_NAME " driver"); MODULE_LICENSE("GPL"); -MODULE_VERSION(APANEL_VERSION); MODULE_ALIAS("dmi:*:svnFUJITSU:pnLifeBook*:pvr*:rvnFUJITSU:*"); MODULE_ALIAS("dmi:*:svnFUJITSU:pnLifebook*:pvr*:rvnFUJITSU:*"); diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c index ebf4448b31b9..ded5b84e336d 100644 --- a/drivers/input/misc/ati_remote2.c +++ b/drivers/input/misc/ati_remote2.c @@ -14,10 +14,8 @@ #include #define DRIVER_DESC "ATI/Philips USB RF remote driver" -#define DRIVER_VERSION "0.3" MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_VERSION(DRIVER_VERSION); MODULE_AUTHOR("Ville Syrjala "); MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index cb4bdbd3e9e2..a94c5e05006b 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -1088,4 +1088,3 @@ MODULE_ALIAS("devname:" UINPUT_NAME); MODULE_AUTHOR("Aristeu Sergio Rozanski Filho"); MODULE_DESCRIPTION("User level driver support for input subsystem"); MODULE_LICENSE("GPL"); -MODULE_VERSION("0.3"); -- cgit v1.2.3 From 77ecf14e9e878eb87ecb5449711ca979712798be Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 16 Jan 2018 16:44:55 -0800 Subject: Input: remove remaining unneeded MODULE_VERSION() usage MODULE_VERSION is useless for in-kernel drivers, so just remove all usage of it in the remaining few input drivers that still used it (input-polldev and sparse-keymap). Signed-off-by: Greg Kroah-Hartman Signed-off-by: Dmitry Torokhov --- drivers/input/input-polldev.c | 1 - drivers/input/sparse-keymap.c | 1 - 2 files changed, 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c index 3664f81655ca..78df5a74822e 100644 --- a/drivers/input/input-polldev.c +++ b/drivers/input/input-polldev.c @@ -20,7 +20,6 @@ MODULE_AUTHOR("Dmitry Torokhov "); MODULE_DESCRIPTION("Generic implementation of a polled input device"); MODULE_LICENSE("GPL v2"); -MODULE_VERSION("0.1"); static void input_polldev_queue_work(struct input_polled_dev *dev) { diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c index fd03e55768c9..0cad5e7c559b 100644 --- a/drivers/input/sparse-keymap.c +++ b/drivers/input/sparse-keymap.c @@ -21,7 +21,6 @@ MODULE_AUTHOR("Dmitry Torokhov "); MODULE_DESCRIPTION("Generic support for sparse keymaps"); MODULE_LICENSE("GPL v2"); -MODULE_VERSION("0.1"); static unsigned int sparse_keymap_get_key_index(struct input_dev *dev, const struct key_entry *k) -- cgit v1.2.3 From 698c03b4745006e14eccb8270f714d52fac1c97e Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 16 Jan 2018 16:56:54 -0800 Subject: Input: inline macros for MODULE_LICENSE, etc Inline macro for MODULE_LICENSE to make the license information easy to find, eg with grep. Inline the other module-related macros at the same time. A simplified version of the semantic patch for the MODULE_LICENSE case is as follows: (http://coccinelle.lip6.fr/) // @s@ identifier i; expression e; @@ @@ declarer name MODULE_LICENSE; identifier s.i; expression s.e; @@ MODULE_LICENSE( - i + e ); // Signed-off-by: Julia Lawall [dtor: added a couple of drivers missed by the script, removed a few unused DRIVER_VERSION macros] Signed-off-by: Dmitry Torokhov --- drivers/input/joystick/xpad.c | 7 ++----- drivers/input/misc/keyspan_remote.c | 8 ++------ drivers/input/misc/yealink.c | 6 ++---- drivers/input/tablet/acecad.c | 11 ++--------- drivers/input/tablet/aiptek.c | 11 ++--------- drivers/input/tablet/hanwang.c | 7 ++----- drivers/input/tablet/kbtab.c | 14 +++----------- drivers/input/touchscreen/usbtouchscreen.c | 9 ++------- 8 files changed, 17 insertions(+), 56 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c index d86e59515b9c..0434a1369188 100644 --- a/drivers/input/joystick/xpad.c +++ b/drivers/input/joystick/xpad.c @@ -84,9 +84,6 @@ #include #include -#define DRIVER_AUTHOR "Marko Friedemann " -#define DRIVER_DESC "X-Box pad driver" - #define XPAD_PKT_LEN 64 /* xbox d-pads should map to buttons, as is required for DDR pads @@ -1924,6 +1921,6 @@ static struct usb_driver xpad_driver = { module_usb_driver(xpad_driver); -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Marko Friedemann "); +MODULE_DESCRIPTION("X-Box pad driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/keyspan_remote.c b/drivers/input/misc/keyspan_remote.c index 4f13b2f7bf4f..67482b248b2d 100644 --- a/drivers/input/misc/keyspan_remote.c +++ b/drivers/input/misc/keyspan_remote.c @@ -17,10 +17,6 @@ #include #include -#define DRIVER_VERSION "v0.1" -#define DRIVER_AUTHOR "Michael Downey " -#define DRIVER_DESC "Driver for the USB Keyspan remote control." - /* Parameters that can be passed to the driver. */ static int debug; module_param(debug, int, 0444); @@ -589,6 +585,6 @@ static struct usb_driver keyspan_driver = module_usb_driver(keyspan_driver); MODULE_DEVICE_TABLE(usb, keyspan_table); -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Michael Downey "); +MODULE_DESCRIPTION("Driver for the USB Keyspan remote control."); MODULE_LICENSE("GPL"); diff --git a/drivers/input/misc/yealink.c b/drivers/input/misc/yealink.c index a1e0ff59d2f2..f0c9bf87b4e3 100644 --- a/drivers/input/misc/yealink.c +++ b/drivers/input/misc/yealink.c @@ -56,8 +56,6 @@ #include "yealink.h" #define DRIVER_VERSION "yld-20051230" -#define DRIVER_AUTHOR "Henk Vergonet" -#define DRIVER_DESC "Yealink phone driver" #define YEALINK_POLLING_FREQUENCY 10 /* in [Hz] */ @@ -1006,6 +1004,6 @@ module_usb_driver(yealink_driver); MODULE_DEVICE_TABLE (usb, usb_table); -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Henk Vergonet"); +MODULE_DESCRIPTION("Yealink phone driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/input/tablet/acecad.c b/drivers/input/tablet/acecad.c index fcb67c7cd86b..a86255d08a6b 100644 --- a/drivers/input/tablet/acecad.c +++ b/drivers/input/tablet/acecad.c @@ -30,15 +30,8 @@ #include #include -/* - * Version Information - */ -#define DRIVER_VERSION "v3.2" -#define DRIVER_DESC "USB Acecad Flair tablet driver" -#define DRIVER_AUTHOR "Edouard TISSERANT " - -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Edouard TISSERANT "); +MODULE_DESCRIPTION("USB Acecad Flair tablet driver"); MODULE_LICENSE("GPL"); #define USB_VENDOR_ID_ACECAD 0x0460 diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c index 0b55e1f375b3..545fa6e89035 100644 --- a/drivers/input/tablet/aiptek.c +++ b/drivers/input/tablet/aiptek.c @@ -78,13 +78,6 @@ #include #include -/* - * Version Information - */ -#define DRIVER_VERSION "v2.3 (May 2, 2007)" -#define DRIVER_AUTHOR "Bryan W. Headley/Chris Atenasio/Cedric Brun/Rene van Paassen" -#define DRIVER_DESC "Aiptek HyperPen USB Tablet Driver (Linux 2.6.x)" - /* * Aiptek status packet: * @@ -1941,8 +1934,8 @@ static struct usb_driver aiptek_driver = { module_usb_driver(aiptek_driver); -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Bryan W. Headley/Chris Atenasio/Cedric Brun/Rene van Paassen"); +MODULE_DESCRIPTION("Aiptek HyperPen USB Tablet Driver"); MODULE_LICENSE("GPL"); module_param(programmableDelay, int, 0); diff --git a/drivers/input/tablet/hanwang.c b/drivers/input/tablet/hanwang.c index 70cb26bbfe1d..4042c41160f4 100644 --- a/drivers/input/tablet/hanwang.c +++ b/drivers/input/tablet/hanwang.c @@ -28,11 +28,8 @@ #include #include -#define DRIVER_AUTHOR "Xing Wei " -#define DRIVER_DESC "USB Hanwang tablet driver" - -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Xing Wei "); +MODULE_DESCRIPTION("USB Hanwang tablet driver"); MODULE_LICENSE("GPL"); #define USB_VENDOR_ID_HANWANG 0x0b57 diff --git a/drivers/input/tablet/kbtab.c b/drivers/input/tablet/kbtab.c index bee18e33e261..75b500651e4e 100644 --- a/drivers/input/tablet/kbtab.c +++ b/drivers/input/tablet/kbtab.c @@ -5,19 +5,11 @@ #include /* - * Version Information - * v0.0.1 - Original, extremely basic version, 2.4.xx only - * v0.0.2 - Updated, works with 2.5.62 and 2.4.20; - * - added pressure-threshold modules param code from - * Alex Perry + * Pressure-threshold modules param code from Alex Perry */ -#define DRIVER_VERSION "v0.0.2" -#define DRIVER_AUTHOR "Josh Myer " -#define DRIVER_DESC "USB KB Gear JamStudio Tablet driver" - -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Josh Myer "); +MODULE_DESCRIPTION("USB KB Gear JamStudio Tablet driver"); MODULE_LICENSE("GPL"); #define USB_VENDOR_ID_KBGEAR 0x084e diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index 2c41107240de..aa77d243b786 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -55,11 +55,6 @@ #include #include - -#define DRIVER_VERSION "v0.6" -#define DRIVER_AUTHOR "Daniel Ritz " -#define DRIVER_DESC "USB Touchscreen Driver" - static bool swap_xy; module_param(swap_xy, bool, 0644); MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped."); @@ -1763,8 +1758,8 @@ static struct usb_driver usbtouch_driver = { module_usb_driver(usbtouch_driver); -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Daniel Ritz "); +MODULE_DESCRIPTION("USB Touchscreen Driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("touchkitusb"); -- cgit v1.2.3 From 0de45027257bbae71a78240af4903d08447a669c Mon Sep 17 00:00:00 2001 From: Corentin Labbe Date: Thu, 18 Jan 2018 11:16:16 -0800 Subject: Input: remove at32psif Since AVR32 arch is gone, at32psif driver is useless. Signed-off-by: Corentin Labbe Signed-off-by: Dmitry Torokhov --- drivers/input/serio/Kconfig | 10 -- drivers/input/serio/Makefile | 1 - drivers/input/serio/at32psif.c | 357 ----------------------------------------- 3 files changed, 368 deletions(-) delete mode 100644 drivers/input/serio/at32psif.c (limited to 'drivers/input') diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig index 21488c048fa3..ca4530eb3378 100644 --- a/drivers/input/serio/Kconfig +++ b/drivers/input/serio/Kconfig @@ -96,16 +96,6 @@ config SERIO_RPCKBD To compile this driver as a module, choose M here: the module will be called rpckbd. -config SERIO_AT32PSIF - tristate "AVR32 PSIF PS/2 keyboard and mouse controller" - depends on AVR32 - help - Say Y here if you want to use the PSIF peripheral on AVR32 devices - and connect a PS/2 keyboard and/or mouse to it. - - To compile this driver as a module, choose M here: the module will - be called at32psif. - config SERIO_AMBAKMI tristate "AMBA KMI keyboard controller" depends on ARM_AMBA diff --git a/drivers/input/serio/Makefile b/drivers/input/serio/Makefile index a3ca07621542..67950a5ccb3f 100644 --- a/drivers/input/serio/Makefile +++ b/drivers/input/serio/Makefile @@ -13,7 +13,6 @@ obj-$(CONFIG_SERIO_CT82C710) += ct82c710.o obj-$(CONFIG_SERIO_RPCKBD) += rpckbd.o obj-$(CONFIG_SERIO_SA1111) += sa1111ps2.o obj-$(CONFIG_SERIO_AMBAKMI) += ambakmi.o -obj-$(CONFIG_SERIO_AT32PSIF) += at32psif.o obj-$(CONFIG_SERIO_Q40KBD) += q40kbd.o obj-$(CONFIG_SERIO_GSCPS2) += gscps2.o obj-$(CONFIG_HP_SDC) += hp_sdc.o diff --git a/drivers/input/serio/at32psif.c b/drivers/input/serio/at32psif.c deleted file mode 100644 index e420fd781d44..000000000000 --- a/drivers/input/serio/at32psif.c +++ /dev/null @@ -1,357 +0,0 @@ -/* - * Copyright (C) 2007 Atmel Corporation - * - * Driver for the AT32AP700X PS/2 controller (PSIF). - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* PSIF register offsets */ -#define PSIF_CR 0x00 -#define PSIF_RHR 0x04 -#define PSIF_THR 0x08 -#define PSIF_SR 0x10 -#define PSIF_IER 0x14 -#define PSIF_IDR 0x18 -#define PSIF_IMR 0x1c -#define PSIF_PSR 0x24 - -/* Bitfields in control register. */ -#define PSIF_CR_RXDIS_OFFSET 1 -#define PSIF_CR_RXDIS_SIZE 1 -#define PSIF_CR_RXEN_OFFSET 0 -#define PSIF_CR_RXEN_SIZE 1 -#define PSIF_CR_SWRST_OFFSET 15 -#define PSIF_CR_SWRST_SIZE 1 -#define PSIF_CR_TXDIS_OFFSET 9 -#define PSIF_CR_TXDIS_SIZE 1 -#define PSIF_CR_TXEN_OFFSET 8 -#define PSIF_CR_TXEN_SIZE 1 - -/* Bitfields in interrupt disable, enable, mask and status register. */ -#define PSIF_NACK_OFFSET 8 -#define PSIF_NACK_SIZE 1 -#define PSIF_OVRUN_OFFSET 5 -#define PSIF_OVRUN_SIZE 1 -#define PSIF_PARITY_OFFSET 9 -#define PSIF_PARITY_SIZE 1 -#define PSIF_RXRDY_OFFSET 4 -#define PSIF_RXRDY_SIZE 1 -#define PSIF_TXEMPTY_OFFSET 1 -#define PSIF_TXEMPTY_SIZE 1 -#define PSIF_TXRDY_OFFSET 0 -#define PSIF_TXRDY_SIZE 1 - -/* Bitfields in prescale register. */ -#define PSIF_PSR_PRSCV_OFFSET 0 -#define PSIF_PSR_PRSCV_SIZE 12 - -/* Bitfields in receive hold register. */ -#define PSIF_RHR_RXDATA_OFFSET 0 -#define PSIF_RHR_RXDATA_SIZE 8 - -/* Bitfields in transmit hold register. */ -#define PSIF_THR_TXDATA_OFFSET 0 -#define PSIF_THR_TXDATA_SIZE 8 - -/* Bit manipulation macros */ -#define PSIF_BIT(name) \ - (1 << PSIF_##name##_OFFSET) - -#define PSIF_BF(name, value) \ - (((value) & ((1 << PSIF_##name##_SIZE) - 1)) \ - << PSIF_##name##_OFFSET) - -#define PSIF_BFEXT(name, value) \ - (((value) >> PSIF_##name##_OFFSET) \ - & ((1 << PSIF_##name##_SIZE) - 1)) - -#define PSIF_BFINS(name, value, old) \ - (((old) & ~(((1 << PSIF_##name##_SIZE) - 1) \ - << PSIF_##name##_OFFSET)) \ - | PSIF_BF(name, value)) - -/* Register access macros */ -#define psif_readl(port, reg) \ - __raw_readl((port)->regs + PSIF_##reg) - -#define psif_writel(port, reg, value) \ - __raw_writel((value), (port)->regs + PSIF_##reg) - -struct psif { - struct platform_device *pdev; - struct clk *pclk; - struct serio *io; - void __iomem *regs; - unsigned int irq; - /* Prevent concurrent writes to PSIF THR. */ - spinlock_t lock; - bool open; -}; - -static irqreturn_t psif_interrupt(int irq, void *_ptr) -{ - struct psif *psif = _ptr; - int retval = IRQ_NONE; - unsigned int io_flags = 0; - unsigned long status; - - status = psif_readl(psif, SR); - - if (status & PSIF_BIT(RXRDY)) { - unsigned char val = (unsigned char) psif_readl(psif, RHR); - - if (status & PSIF_BIT(PARITY)) - io_flags |= SERIO_PARITY; - if (status & PSIF_BIT(OVRUN)) - dev_err(&psif->pdev->dev, "overrun read error\n"); - - serio_interrupt(psif->io, val, io_flags); - - retval = IRQ_HANDLED; - } - - return retval; -} - -static int psif_write(struct serio *io, unsigned char val) -{ - struct psif *psif = io->port_data; - unsigned long flags; - int timeout = 10; - int retval = 0; - - spin_lock_irqsave(&psif->lock, flags); - - while (!(psif_readl(psif, SR) & PSIF_BIT(TXEMPTY)) && timeout--) - udelay(50); - - if (timeout >= 0) { - psif_writel(psif, THR, val); - } else { - dev_dbg(&psif->pdev->dev, "timeout writing to THR\n"); - retval = -EBUSY; - } - - spin_unlock_irqrestore(&psif->lock, flags); - - return retval; -} - -static int psif_open(struct serio *io) -{ - struct psif *psif = io->port_data; - int retval; - - retval = clk_enable(psif->pclk); - if (retval) - return retval; - - psif_writel(psif, CR, PSIF_BIT(CR_TXEN) | PSIF_BIT(CR_RXEN)); - psif_writel(psif, IER, PSIF_BIT(RXRDY)); - - psif->open = true; - return retval; -} - -static void psif_close(struct serio *io) -{ - struct psif *psif = io->port_data; - - psif->open = false; - - psif_writel(psif, IDR, ~0UL); - psif_writel(psif, CR, PSIF_BIT(CR_TXDIS) | PSIF_BIT(CR_RXDIS)); - - clk_disable(psif->pclk); -} - -static void psif_set_prescaler(struct psif *psif) -{ - unsigned long prscv; - unsigned long rate = clk_get_rate(psif->pclk); - - /* PRSCV = Pulse length (100 us) * PSIF module frequency. */ - prscv = 100 * (rate / 1000000UL); - - if (prscv > ((1<pdev->dev, "pclk too fast, " - "prescaler set to max\n"); - } - - clk_enable(psif->pclk); - psif_writel(psif, PSR, prscv); - clk_disable(psif->pclk); -} - -static int __init psif_probe(struct platform_device *pdev) -{ - struct resource *regs; - struct psif *psif; - struct serio *io; - struct clk *pclk; - int irq; - int ret; - - psif = kzalloc(sizeof(struct psif), GFP_KERNEL); - if (!psif) - return -ENOMEM; - psif->pdev = pdev; - - io = kzalloc(sizeof(struct serio), GFP_KERNEL); - if (!io) { - ret = -ENOMEM; - goto out_free_psif; - } - psif->io = io; - - regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!regs) { - dev_dbg(&pdev->dev, "no mmio resources defined\n"); - ret = -ENOMEM; - goto out_free_io; - } - - psif->regs = ioremap(regs->start, resource_size(regs)); - if (!psif->regs) { - ret = -ENOMEM; - dev_dbg(&pdev->dev, "could not map I/O memory\n"); - goto out_free_io; - } - - pclk = clk_get(&pdev->dev, "pclk"); - if (IS_ERR(pclk)) { - dev_dbg(&pdev->dev, "could not get peripheral clock\n"); - ret = PTR_ERR(pclk); - goto out_iounmap; - } - psif->pclk = pclk; - - /* Reset the PSIF to enter at a known state. */ - ret = clk_enable(pclk); - if (ret) { - dev_dbg(&pdev->dev, "could not enable pclk\n"); - goto out_put_clk; - } - psif_writel(psif, CR, PSIF_BIT(CR_SWRST)); - clk_disable(pclk); - - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_dbg(&pdev->dev, "could not get irq\n"); - ret = -ENXIO; - goto out_put_clk; - } - ret = request_irq(irq, psif_interrupt, IRQF_SHARED, "at32psif", psif); - if (ret) { - dev_dbg(&pdev->dev, "could not request irq %d\n", irq); - goto out_put_clk; - } - psif->irq = irq; - - io->id.type = SERIO_8042; - io->write = psif_write; - io->open = psif_open; - io->close = psif_close; - snprintf(io->name, sizeof(io->name), "AVR32 PS/2 port%d", pdev->id); - snprintf(io->phys, sizeof(io->phys), "at32psif/serio%d", pdev->id); - io->port_data = psif; - io->dev.parent = &pdev->dev; - - psif_set_prescaler(psif); - - spin_lock_init(&psif->lock); - serio_register_port(psif->io); - platform_set_drvdata(pdev, psif); - - dev_info(&pdev->dev, "Atmel AVR32 PSIF PS/2 driver on 0x%08x irq %d\n", - (int)psif->regs, psif->irq); - - return 0; - -out_put_clk: - clk_put(psif->pclk); -out_iounmap: - iounmap(psif->regs); -out_free_io: - kfree(io); -out_free_psif: - kfree(psif); - return ret; -} - -static int __exit psif_remove(struct platform_device *pdev) -{ - struct psif *psif = platform_get_drvdata(pdev); - - psif_writel(psif, IDR, ~0UL); - psif_writel(psif, CR, PSIF_BIT(CR_TXDIS) | PSIF_BIT(CR_RXDIS)); - - serio_unregister_port(psif->io); - iounmap(psif->regs); - free_irq(psif->irq, psif); - clk_put(psif->pclk); - kfree(psif); - - return 0; -} - -#ifdef CONFIG_PM_SLEEP -static int psif_suspend(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct psif *psif = platform_get_drvdata(pdev); - - if (psif->open) { - psif_writel(psif, CR, PSIF_BIT(CR_RXDIS) | PSIF_BIT(CR_TXDIS)); - clk_disable(psif->pclk); - } - - return 0; -} - -static int psif_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct psif *psif = platform_get_drvdata(pdev); - - if (psif->open) { - clk_enable(psif->pclk); - psif_set_prescaler(psif); - psif_writel(psif, CR, PSIF_BIT(CR_RXEN) | PSIF_BIT(CR_TXEN)); - } - - return 0; -} -#endif - -static SIMPLE_DEV_PM_OPS(psif_pm_ops, psif_suspend, psif_resume); - -static struct platform_driver psif_driver = { - .remove = __exit_p(psif_remove), - .driver = { - .name = "atmel_psif", - .pm = &psif_pm_ops, - }, -}; - -module_platform_driver_probe(psif_driver, psif_probe); - -MODULE_AUTHOR("Hans-Christian Egtvedt "); -MODULE_DESCRIPTION("Atmel AVR32 PSIF PS/2 driver"); -MODULE_LICENSE("GPL"); -- cgit v1.2.3 From deb106beb7efebd43a98d0fa84b3709a862da20c Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Thu, 18 Jan 2018 11:22:11 -0800 Subject: Input: cyapa - remove redundant assignment to 'pwr_cmd' The variable pwr_cmd is being assigned to cyapa->suspend_power_mode twice, once during the declaration and once after taking an interruptible mutex lock. Remove the redundant first assignment since the value is never read and it is outside the mutex lock. Cleans up clang warning: drivers/input/mouse/cyapa.c:743:5: warning: Value stored to 'pwr_cmd' during its initialization is never read Signed-off-by: Colin Ian King Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/cyapa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c index fd8865c65caf..dfd3873513e4 100644 --- a/drivers/input/mouse/cyapa.c +++ b/drivers/input/mouse/cyapa.c @@ -740,7 +740,7 @@ static ssize_t cyapa_show_suspend_scanrate(struct device *dev, char *buf) { struct cyapa *cyapa = dev_get_drvdata(dev); - u8 pwr_cmd = cyapa->suspend_power_mode; + u8 pwr_cmd; u16 sleep_time; int len; int error; -- cgit v1.2.3 From 082dc4dcc35f9e1695f0050ea6475f9a56df2c0a Mon Sep 17 00:00:00 2001 From: Corentin Labbe Date: Fri, 19 Jan 2018 09:29:28 -0800 Subject: Input: remove atmel-wm97xx touchscreen driver Since AVR32 arch is gone, atmel-wm97xx driver is useless. In theory it could have been rewritten to work with AT91 devices, but the driver is from the platform data era, and a bit hard coded to work on AVR32 hardware variant of the AC97C peripheral, so let's remove it. Signed-off-by: Corentin Labbe Acked-by: Hans-Christian Noren Egtvedt Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/Kconfig | 15 -- drivers/input/touchscreen/Makefile | 1 - drivers/input/touchscreen/atmel-wm97xx.c | 436 ------------------------------- 3 files changed, 452 deletions(-) delete mode 100644 drivers/input/touchscreen/atmel-wm97xx.c (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 0cfdb7cb610e..5fac4ef3ae7b 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -795,21 +795,6 @@ config TOUCHSCREEN_WM9713 Say Y here to enable support for the Wolfson Microelectronics WM9713 touchscreen controller. -config TOUCHSCREEN_WM97XX_ATMEL - tristate "WM97xx Atmel accelerated touch" - depends on TOUCHSCREEN_WM97XX && AVR32 - help - Say Y here for support for streaming mode with WM97xx touchscreens - on Atmel AT91 or AVR32 systems with an AC97C module. - - Be aware that this will use channel B in the controller for - streaming data, this must not conflict with other AC97C drivers. - - If unsure, say N. - - To compile this driver as a module, choose M here: the module will - be called atmel-wm97xx. - config TOUCHSCREEN_WM97XX_MAINSTONE tristate "WM97xx Mainstone/Palm accelerated touch" depends on TOUCHSCREEN_WM97XX && ARCH_PXA diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index d2a2b3b7af27..dddae7973436 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -97,7 +97,6 @@ obj-$(CONFIG_TOUCHSCREEN_WM97XX) += wm97xx-ts.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705) += wm9705.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712) += wm9712.o wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713) += wm9713.o -obj-$(CONFIG_TOUCHSCREEN_WM97XX_ATMEL) += atmel-wm97xx.o obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o obj-$(CONFIG_TOUCHSCREEN_W90X900) += w90p910_ts.o diff --git a/drivers/input/touchscreen/atmel-wm97xx.c b/drivers/input/touchscreen/atmel-wm97xx.c deleted file mode 100644 index 9140a43cfe20..000000000000 --- a/drivers/input/touchscreen/atmel-wm97xx.c +++ /dev/null @@ -1,436 +0,0 @@ -/* - * Atmel AT91 and AVR32 continuous touch screen driver for Wolfson WM97xx AC97 - * codecs. - * - * Copyright (C) 2008 - 2009 Atmel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define AC97C_ICA 0x10 -#define AC97C_CBRHR 0x30 -#define AC97C_CBSR 0x38 -#define AC97C_CBMR 0x3c -#define AC97C_IER 0x54 -#define AC97C_IDR 0x58 - -#define AC97C_RXRDY (1 << 4) -#define AC97C_OVRUN (1 << 5) - -#define AC97C_CMR_SIZE_20 (0 << 16) -#define AC97C_CMR_SIZE_18 (1 << 16) -#define AC97C_CMR_SIZE_16 (2 << 16) -#define AC97C_CMR_SIZE_10 (3 << 16) -#define AC97C_CMR_CEM_LITTLE (1 << 18) -#define AC97C_CMR_CEM_BIG (0 << 18) -#define AC97C_CMR_CENA (1 << 21) - -#define AC97C_INT_CBEVT (1 << 4) - -#define AC97C_SR_CAEVT (1 << 3) - -#define AC97C_CH_MASK(slot) \ - (0x7 << (3 * (slot - 3))) -#define AC97C_CH_ASSIGN(slot, channel) \ - (AC97C_CHANNEL_##channel << (3 * (slot - 3))) -#define AC97C_CHANNEL_NONE 0x0 -#define AC97C_CHANNEL_B 0x2 - -#define ac97c_writel(chip, reg, val) \ - __raw_writel((val), (chip)->regs + AC97C_##reg) -#define ac97c_readl(chip, reg) \ - __raw_readl((chip)->regs + AC97C_##reg) - -#ifdef CONFIG_CPU_AT32AP700X -#define ATMEL_WM97XX_AC97C_IOMEM (0xfff02800) -#define ATMEL_WM97XX_AC97C_IRQ (29) -#define ATMEL_WM97XX_GPIO_DEFAULT (32+16) /* Pin 16 on port B. */ -#else -#error Unknown CPU, this driver only supports AT32AP700X CPUs. -#endif - -struct continuous { - u16 id; /* codec id */ - u8 code; /* continuous code */ - u8 reads; /* number of coord reads per read cycle */ - u32 speed; /* number of coords per second */ -}; - -#define WM_READS(sp) ((sp / HZ) + 1) - -static const struct continuous cinfo[] = { - {WM9705_ID2, 0, WM_READS(94), 94}, - {WM9705_ID2, 1, WM_READS(188), 188}, - {WM9705_ID2, 2, WM_READS(375), 375}, - {WM9705_ID2, 3, WM_READS(750), 750}, - {WM9712_ID2, 0, WM_READS(94), 94}, - {WM9712_ID2, 1, WM_READS(188), 188}, - {WM9712_ID2, 2, WM_READS(375), 375}, - {WM9712_ID2, 3, WM_READS(750), 750}, - {WM9713_ID2, 0, WM_READS(94), 94}, - {WM9713_ID2, 1, WM_READS(120), 120}, - {WM9713_ID2, 2, WM_READS(154), 154}, - {WM9713_ID2, 3, WM_READS(188), 188}, -}; - -/* Continuous speed index. */ -static int sp_idx; - -/* - * Pen sampling frequency (Hz) in continuous mode. - */ -static int cont_rate = 188; -module_param(cont_rate, int, 0); -MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)"); - -/* - * Pen down detection. - * - * This driver can either poll or use an interrupt to indicate a pen down - * event. If the irq request fails then it will fall back to polling mode. - */ -static int pen_int = 1; -module_param(pen_int, int, 0); -MODULE_PARM_DESC(pen_int, "Pen down detection (1 = interrupt, 0 = polling)"); - -/* - * Pressure readback. - * - * Set to 1 to read back pen down pressure. - */ -static int pressure; -module_param(pressure, int, 0); -MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)"); - -/* - * AC97 touch data slot. - * - * Touch screen readback data ac97 slot. - */ -static int ac97_touch_slot = 5; -module_param(ac97_touch_slot, int, 0); -MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number"); - -/* - * GPIO line number. - * - * Set to GPIO number where the signal from the WM97xx device is hooked up. - */ -static int atmel_gpio_line = ATMEL_WM97XX_GPIO_DEFAULT; -module_param(atmel_gpio_line, int, 0); -MODULE_PARM_DESC(atmel_gpio_line, "GPIO line number connected to WM97xx"); - -struct atmel_wm97xx { - struct wm97xx *wm; - struct timer_list pen_timer; - void __iomem *regs; - unsigned long ac97c_irq; - unsigned long gpio_pen; - unsigned long gpio_irq; - unsigned short x; - unsigned short y; -}; - -static irqreturn_t atmel_wm97xx_channel_b_interrupt(int irq, void *dev_id) -{ - struct atmel_wm97xx *atmel_wm97xx = dev_id; - struct wm97xx *wm = atmel_wm97xx->wm; - int status = ac97c_readl(atmel_wm97xx, CBSR); - irqreturn_t retval = IRQ_NONE; - - if (status & AC97C_OVRUN) { - dev_dbg(&wm->touch_dev->dev, "AC97C overrun\n"); - ac97c_readl(atmel_wm97xx, CBRHR); - retval = IRQ_HANDLED; - } else if (status & AC97C_RXRDY) { - u16 data; - u16 value; - u16 source; - u16 pen_down; - - data = ac97c_readl(atmel_wm97xx, CBRHR); - value = data & 0x0fff; - source = data & WM97XX_ADCSEL_MASK; - pen_down = (data & WM97XX_PEN_DOWN) >> 8; - - if (source == WM97XX_ADCSEL_X) - atmel_wm97xx->x = value; - if (source == WM97XX_ADCSEL_Y) - atmel_wm97xx->y = value; - - if (!pressure && source == WM97XX_ADCSEL_Y) { - input_report_abs(wm->input_dev, ABS_X, atmel_wm97xx->x); - input_report_abs(wm->input_dev, ABS_Y, atmel_wm97xx->y); - input_report_key(wm->input_dev, BTN_TOUCH, pen_down); - input_sync(wm->input_dev); - } else if (pressure && source == WM97XX_ADCSEL_PRES) { - input_report_abs(wm->input_dev, ABS_X, atmel_wm97xx->x); - input_report_abs(wm->input_dev, ABS_Y, atmel_wm97xx->y); - input_report_abs(wm->input_dev, ABS_PRESSURE, value); - input_report_key(wm->input_dev, BTN_TOUCH, value); - input_sync(wm->input_dev); - } - - retval = IRQ_HANDLED; - } - - return retval; -} - -static void atmel_wm97xx_acc_pen_up(struct wm97xx *wm) -{ - struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(wm->touch_dev); - struct input_dev *input_dev = wm->input_dev; - int pen_down = gpio_get_value(atmel_wm97xx->gpio_pen); - - if (pen_down != 0) { - mod_timer(&atmel_wm97xx->pen_timer, - jiffies + msecs_to_jiffies(1)); - } else { - if (pressure) - input_report_abs(input_dev, ABS_PRESSURE, 0); - input_report_key(input_dev, BTN_TOUCH, 0); - input_sync(input_dev); - } -} - -static void atmel_wm97xx_pen_timer(struct timer_list *t) -{ - struct atmel_wm97xx *atmel_wm97xx = from_timer(atmel_wm97xx, t, - pen_timer); - - atmel_wm97xx_acc_pen_up(atmel_wm97xx->wm); -} - -static int atmel_wm97xx_acc_startup(struct wm97xx *wm) -{ - struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(wm->touch_dev); - int idx = 0; - - if (wm->ac97 == NULL) - return -ENODEV; - - for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) { - if (wm->id != cinfo[idx].id) - continue; - - sp_idx = idx; - - if (cont_rate <= cinfo[idx].speed) - break; - } - - wm->acc_rate = cinfo[sp_idx].code; - wm->acc_slot = ac97_touch_slot; - dev_info(&wm->touch_dev->dev, "atmel accelerated touchscreen driver, " - "%d samples/sec\n", cinfo[sp_idx].speed); - - if (pen_int) { - unsigned long reg; - - wm->pen_irq = atmel_wm97xx->gpio_irq; - - switch (wm->id) { - case WM9712_ID2: /* Fall through. */ - case WM9713_ID2: - /* - * Use GPIO 13 (PEN_DOWN) to assert GPIO line 3 - * (PENDOWN). - */ - wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN, - WM97XX_GPIO_POL_HIGH, - WM97XX_GPIO_STICKY, - WM97XX_GPIO_WAKE); - wm97xx_config_gpio(wm, WM97XX_GPIO_3, WM97XX_GPIO_OUT, - WM97XX_GPIO_POL_HIGH, - WM97XX_GPIO_NOTSTICKY, - WM97XX_GPIO_NOWAKE); - case WM9705_ID2: /* Fall through. */ - /* - * Enable touch data slot in AC97 controller channel B. - */ - reg = ac97c_readl(atmel_wm97xx, ICA); - reg &= ~AC97C_CH_MASK(wm->acc_slot); - reg |= AC97C_CH_ASSIGN(wm->acc_slot, B); - ac97c_writel(atmel_wm97xx, ICA, reg); - - /* - * Enable channel and interrupt for RXRDY and OVERRUN. - */ - ac97c_writel(atmel_wm97xx, CBMR, AC97C_CMR_CENA - | AC97C_CMR_CEM_BIG - | AC97C_CMR_SIZE_16 - | AC97C_OVRUN - | AC97C_RXRDY); - /* Dummy read to empty RXRHR. */ - ac97c_readl(atmel_wm97xx, CBRHR); - /* - * Enable interrupt for channel B in the AC97 - * controller. - */ - ac97c_writel(atmel_wm97xx, IER, AC97C_INT_CBEVT); - break; - default: - dev_err(&wm->touch_dev->dev, "pen down irq not " - "supported on this device\n"); - pen_int = 0; - break; - } - } - - return 0; -} - -static void atmel_wm97xx_acc_shutdown(struct wm97xx *wm) -{ - if (pen_int) { - struct atmel_wm97xx *atmel_wm97xx = - platform_get_drvdata(wm->touch_dev); - unsigned long ica; - - switch (wm->id & 0xffff) { - case WM9705_ID2: /* Fall through. */ - case WM9712_ID2: /* Fall through. */ - case WM9713_ID2: - /* Disable slot and turn off channel B interrupts. */ - ica = ac97c_readl(atmel_wm97xx, ICA); - ica &= ~AC97C_CH_MASK(wm->acc_slot); - ac97c_writel(atmel_wm97xx, ICA, ica); - ac97c_writel(atmel_wm97xx, IDR, AC97C_INT_CBEVT); - ac97c_writel(atmel_wm97xx, CBMR, 0); - wm->pen_irq = 0; - break; - default: - dev_err(&wm->touch_dev->dev, "unknown codec\n"); - break; - } - } -} - -static void atmel_wm97xx_irq_enable(struct wm97xx *wm, int enable) -{ - /* Intentionally left empty. */ -} - -static struct wm97xx_mach_ops atmel_mach_ops = { - .acc_enabled = 1, - .acc_pen_up = atmel_wm97xx_acc_pen_up, - .acc_startup = atmel_wm97xx_acc_startup, - .acc_shutdown = atmel_wm97xx_acc_shutdown, - .irq_enable = atmel_wm97xx_irq_enable, - .irq_gpio = WM97XX_GPIO_3, -}; - -static int __init atmel_wm97xx_probe(struct platform_device *pdev) -{ - struct wm97xx *wm = platform_get_drvdata(pdev); - struct atmel_wm97xx *atmel_wm97xx; - int ret; - - atmel_wm97xx = kzalloc(sizeof(struct atmel_wm97xx), GFP_KERNEL); - if (!atmel_wm97xx) - return -ENOMEM; - - atmel_wm97xx->wm = wm; - atmel_wm97xx->regs = (void *)ATMEL_WM97XX_AC97C_IOMEM; - atmel_wm97xx->ac97c_irq = ATMEL_WM97XX_AC97C_IRQ; - atmel_wm97xx->gpio_pen = atmel_gpio_line; - atmel_wm97xx->gpio_irq = gpio_to_irq(atmel_wm97xx->gpio_pen); - - timer_setup(&atmel_wm97xx->pen_timer, atmel_wm97xx_pen_timer, 0); - - ret = request_irq(atmel_wm97xx->ac97c_irq, - atmel_wm97xx_channel_b_interrupt, - IRQF_SHARED, "atmel-wm97xx-ch-b", atmel_wm97xx); - if (ret) { - dev_dbg(&pdev->dev, "could not request ac97c irq\n"); - goto err; - } - - platform_set_drvdata(pdev, atmel_wm97xx); - - ret = wm97xx_register_mach_ops(wm, &atmel_mach_ops); - if (ret) - goto err_irq; - - return ret; - -err_irq: - free_irq(atmel_wm97xx->ac97c_irq, atmel_wm97xx); -err: - kfree(atmel_wm97xx); - return ret; -} - -static int __exit atmel_wm97xx_remove(struct platform_device *pdev) -{ - struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev); - struct wm97xx *wm = atmel_wm97xx->wm; - - ac97c_writel(atmel_wm97xx, IDR, AC97C_INT_CBEVT); - free_irq(atmel_wm97xx->ac97c_irq, atmel_wm97xx); - del_timer_sync(&atmel_wm97xx->pen_timer); - wm97xx_unregister_mach_ops(wm); - kfree(atmel_wm97xx); - - return 0; -} - -#ifdef CONFIG_PM_SLEEP -static int atmel_wm97xx_suspend(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev); - - ac97c_writel(atmel_wm97xx, IDR, AC97C_INT_CBEVT); - disable_irq(atmel_wm97xx->gpio_irq); - del_timer_sync(&atmel_wm97xx->pen_timer); - - return 0; -} - -static int atmel_wm97xx_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev); - struct wm97xx *wm = atmel_wm97xx->wm; - - if (wm->input_dev->users) { - enable_irq(atmel_wm97xx->gpio_irq); - ac97c_writel(atmel_wm97xx, IER, AC97C_INT_CBEVT); - } - - return 0; -} -#endif - -static SIMPLE_DEV_PM_OPS(atmel_wm97xx_pm_ops, - atmel_wm97xx_suspend, atmel_wm97xx_resume); - -static struct platform_driver atmel_wm97xx_driver = { - .remove = __exit_p(atmel_wm97xx_remove), - .driver = { - .name = "wm97xx-touch", - .pm = &atmel_wm97xx_pm_ops, - }, -}; - -module_platform_driver_probe(atmel_wm97xx_driver, atmel_wm97xx_probe); - -MODULE_AUTHOR("Hans-Christian Egtvedt "); -MODULE_DESCRIPTION("wm97xx continuous touch driver for Atmel AT91 and AVR32"); -MODULE_LICENSE("GPL"); -- cgit v1.2.3 From f8c5938f6919bfe7b82ed34472bee1eb637ddbea Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Mon, 22 Jan 2018 11:23:27 -0800 Subject: Input: stmfts,s6sy671 - add SPDX identifier Replace the original license statement with the SPDX identifier. Update also the copyright owner adding myself as co-owner of the copyright. Signed-off-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/s6sy761.c | 15 +++++---------- drivers/input/touchscreen/stmfts.c | 15 +++++---------- 2 files changed, 10 insertions(+), 20 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/s6sy761.c b/drivers/input/touchscreen/s6sy761.c index 26b1cb8a88ec..675efa93d444 100644 --- a/drivers/input/touchscreen/s6sy761.c +++ b/drivers/input/touchscreen/s6sy761.c @@ -1,13 +1,8 @@ -/* - * Copyright (c) 2017 Samsung Electronics Co., Ltd. - * Author: Andi Shyti - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Samsung S6SY761 Touchscreen device driver - */ +// SPDX-License-Identifier: GPL-2.0 +// Samsung S6SY761 Touchscreen device driver +// +// Copyright (c) 2017 Samsung Electronics Co., Ltd. +// Copyright (c) 2017 Andi Shyti #include #include diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c index c12d01899939..2a123e20a42e 100644 --- a/drivers/input/touchscreen/stmfts.c +++ b/drivers/input/touchscreen/stmfts.c @@ -1,13 +1,8 @@ -/* - * Copyright (c) 2017 Samsung Electronics Co., Ltd. - * Author: Andi Shyti - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * STMicroelectronics FTS Touchscreen device driver - */ +// SPDX-License-Identifier: GPL-2.0 +// STMicroelectronics FTS Touchscreen device driver +// +// Copyright (c) 2017 Samsung Electronics Co., Ltd. +// Copyright (c) 2017 Andi Shyti #include #include -- cgit v1.2.3 From fbe6a536cf9c71ac02b763b76ad7395132d4ecbc Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Mon, 22 Jan 2018 16:08:51 -0800 Subject: Input: ad7877 - use managed resource allocations Use managed resource allocations to simplify error handling during probing failure and module exiting. With this all the goto labels in the probe function together with the cleanups in the remove function are unnecessary, therefore removed. Signed-off-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ad7877.c | 67 +++++++++++++------------------------- 1 file changed, 23 insertions(+), 44 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c index 0381c7809d1b..5cfe477ec992 100644 --- a/drivers/input/touchscreen/ad7877.c +++ b/drivers/input/touchscreen/ad7877.c @@ -417,8 +417,10 @@ out: return IRQ_HANDLED; } -static void ad7877_disable(struct ad7877 *ts) +static void ad7877_disable(void *data) { + struct ad7877 *ts = data; + mutex_lock(&ts->mutex); if (!ts->disabled) { @@ -707,12 +709,17 @@ static int ad7877_probe(struct spi_device *spi) return err; } - ts = kzalloc(sizeof(struct ad7877), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!ts || !input_dev) { - err = -ENOMEM; - goto err_free_mem; - } + ts = devm_kzalloc(&spi->dev, sizeof(struct ad7877), GFP_KERNEL); + if (!ts) + return -ENOMEM; + + input_dev = devm_input_allocate_device(&spi->dev); + if (!input_dev) + return -ENOMEM; + + err = devm_add_action_or_reset(&spi->dev, ad7877_disable, ts); + if (err) + return err; spi_set_drvdata(spi, ts); ts->spi = spi; @@ -761,11 +768,10 @@ static int ad7877_probe(struct spi_device *spi) verify = ad7877_read(spi, AD7877_REG_SEQ1); - if (verify != AD7877_MM_SEQUENCE){ + if (verify != AD7877_MM_SEQUENCE) { dev_err(&spi->dev, "%s: Failed to probe %s\n", dev_name(&spi->dev), input_dev->name); - err = -ENODEV; - goto err_free_mem; + return -ENODEV; } if (gpio3) @@ -775,47 +781,21 @@ static int ad7877_probe(struct spi_device *spi) /* Request AD7877 /DAV GPIO interrupt */ - err = request_threaded_irq(spi->irq, NULL, ad7877_irq, - IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - spi->dev.driver->name, ts); + err = devm_request_threaded_irq(&spi->dev, spi->irq, NULL, ad7877_irq, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + spi->dev.driver->name, ts); if (err) { dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq); - goto err_free_mem; + return err; } - err = sysfs_create_group(&spi->dev.kobj, &ad7877_attr_group); + err = devm_device_add_group(&spi->dev, &ad7877_attr_group); if (err) - goto err_free_irq; + return err; err = input_register_device(input_dev); if (err) - goto err_remove_attr_group; - - return 0; - -err_remove_attr_group: - sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group); -err_free_irq: - free_irq(spi->irq, ts); -err_free_mem: - input_free_device(input_dev); - kfree(ts); - return err; -} - -static int ad7877_remove(struct spi_device *spi) -{ - struct ad7877 *ts = spi_get_drvdata(spi); - - sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group); - - ad7877_disable(ts); - free_irq(ts->spi->irq, ts); - - input_unregister_device(ts->input); - kfree(ts); - - dev_dbg(&spi->dev, "unregistered touchscreen\n"); + return err; return 0; } @@ -846,7 +826,6 @@ static struct spi_driver ad7877_driver = { .pm = &ad7877_pm, }, .probe = ad7877_probe, - .remove = ad7877_remove, }; module_spi_driver(ad7877_driver); -- cgit v1.2.3 From a1ab69021a584d952e6548a44b93760547b1b6b5 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 17 Jan 2018 16:18:27 -0800 Subject: Input: synaptics-rmi4 - do not delete interrupt memory too early We want to free memory reserved for interrupt mask handling only after we free functions, as function drivers might want to mask interrupts. This is needed for the followup patch to the F03 that would implement unmasking and masking interrupts from the serio pass-through port open() and close() methods. Cc: stable@vger.kernel.org Reviewed-by: Lyude Paul Signed-off-by: Dmitry Torokhov --- drivers/input/rmi4/rmi_driver.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c index 4f2bb5947a4e..d43ab65263af 100644 --- a/drivers/input/rmi4/rmi_driver.c +++ b/drivers/input/rmi4/rmi_driver.c @@ -41,6 +41,13 @@ void rmi_free_function_list(struct rmi_device *rmi_dev) rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev, "Freeing function list\n"); + /* Doing it in the reverse order so F01 will be removed last */ + list_for_each_entry_safe_reverse(fn, tmp, + &data->function_list, node) { + list_del(&fn->node); + rmi_unregister_function(fn); + } + devm_kfree(&rmi_dev->dev, data->irq_memory); data->irq_memory = NULL; data->irq_status = NULL; @@ -50,13 +57,6 @@ void rmi_free_function_list(struct rmi_device *rmi_dev) data->f01_container = NULL; data->f34_container = NULL; - - /* Doing it in the reverse order so F01 will be removed last */ - list_for_each_entry_safe_reverse(fn, tmp, - &data->function_list, node) { - list_del(&fn->node); - rmi_unregister_function(fn); - } } static int reset_one_function(struct rmi_function *fn) -- cgit v1.2.3 From 6abe534f0776d2437c8302f58d8eb5abd483e926 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 17 Jan 2018 15:46:18 -0800 Subject: Input: synaptics-rmi4 - unmask F03 interrupts when port is opened Currently we register the pass-through serio port when we probe the F03 RMI function, and then, in sensor configure phase, we unmask interrupts. Unfortunately this is too late, as other drivers are free probe devices attached to the serio port as soon as it is probed. Because interrupts are masked, the IO times out, which may result in not being able to detect trackpoints on the pass-through port. To fix the issue we implement open() and close() methods for the pass-through serio port and unmask interrupts from there. We also move creation of the pass-through port form probe to configure stage, as RMI driver does not enable transport interrupt until all functions are probed (we should change this, but this is a separate topic). We also try to clear the pending data before unmasking interrupts, because some devices like to spam the system with multiple 0xaa 0x00 announcements, which may interfere with us trying to query ID of the device. Fixes: c5e8848fc98e ("Input: synaptics-rmi4 - add support for F03") Cc: stable@vger.kernel.org Reviewed-by: Lyude Paul Signed-off-by: Dmitry Torokhov --- drivers/input/rmi4/rmi_f03.c | 64 +++++++++++++++++++++++++++++++++++++------- 1 file changed, 54 insertions(+), 10 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/rmi4/rmi_f03.c b/drivers/input/rmi4/rmi_f03.c index ad71a5e768dc..7ccbb370a9a8 100644 --- a/drivers/input/rmi4/rmi_f03.c +++ b/drivers/input/rmi4/rmi_f03.c @@ -32,6 +32,7 @@ struct f03_data { struct rmi_function *fn; struct serio *serio; + bool serio_registered; unsigned int overwrite_buttons; @@ -138,6 +139,37 @@ static int rmi_f03_initialize(struct f03_data *f03) return 0; } +static int rmi_f03_pt_open(struct serio *serio) +{ + struct f03_data *f03 = serio->port_data; + struct rmi_function *fn = f03->fn; + const u8 ob_len = f03->rx_queue_length * RMI_F03_OB_SIZE; + const u16 data_addr = fn->fd.data_base_addr + RMI_F03_OB_OFFSET; + u8 obs[RMI_F03_QUEUE_LENGTH * RMI_F03_OB_SIZE]; + int error; + + /* + * Consume any pending data. Some devices like to spam with + * 0xaa 0x00 announcements which may confuse us as we try to + * probe the device. + */ + error = rmi_read_block(fn->rmi_dev, data_addr, &obs, ob_len); + if (!error) + rmi_dbg(RMI_DEBUG_FN, &fn->dev, + "%s: Consumed %*ph (%d) from PS2 guest\n", + __func__, ob_len, obs, ob_len); + + return fn->rmi_dev->driver->set_irq_bits(fn->rmi_dev, fn->irq_mask); +} + +static void rmi_f03_pt_close(struct serio *serio) +{ + struct f03_data *f03 = serio->port_data; + struct rmi_function *fn = f03->fn; + + fn->rmi_dev->driver->clear_irq_bits(fn->rmi_dev, fn->irq_mask); +} + static int rmi_f03_register_pt(struct f03_data *f03) { struct serio *serio; @@ -148,6 +180,8 @@ static int rmi_f03_register_pt(struct f03_data *f03) serio->id.type = SERIO_PS_PSTHRU; serio->write = rmi_f03_pt_write; + serio->open = rmi_f03_pt_open; + serio->close = rmi_f03_pt_close; serio->port_data = f03; strlcpy(serio->name, "Synaptics RMI4 PS/2 pass-through", @@ -184,17 +218,27 @@ static int rmi_f03_probe(struct rmi_function *fn) f03->device_count); dev_set_drvdata(dev, f03); - - error = rmi_f03_register_pt(f03); - if (error) - return error; - return 0; } static int rmi_f03_config(struct rmi_function *fn) { - fn->rmi_dev->driver->set_irq_bits(fn->rmi_dev, fn->irq_mask); + struct f03_data *f03 = dev_get_drvdata(&fn->dev); + int error; + + if (!f03->serio_registered) { + error = rmi_f03_register_pt(f03); + if (error) + return error; + + f03->serio_registered = true; + } else { + /* + * We must be re-configuring the sensor, just enable + * interrupts for this function. + */ + fn->rmi_dev->driver->set_irq_bits(fn->rmi_dev, fn->irq_mask); + } return 0; } @@ -204,7 +248,7 @@ static int rmi_f03_attention(struct rmi_function *fn, unsigned long *irq_bits) struct rmi_device *rmi_dev = fn->rmi_dev; struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev); struct f03_data *f03 = dev_get_drvdata(&fn->dev); - u16 data_addr = fn->fd.data_base_addr; + const u16 data_addr = fn->fd.data_base_addr + RMI_F03_OB_OFFSET; const u8 ob_len = f03->rx_queue_length * RMI_F03_OB_SIZE; u8 obs[RMI_F03_QUEUE_LENGTH * RMI_F03_OB_SIZE]; u8 ob_status; @@ -226,8 +270,7 @@ static int rmi_f03_attention(struct rmi_function *fn, unsigned long *irq_bits) drvdata->attn_data.size -= ob_len; } else { /* Grab all of the data registers, and check them for data */ - error = rmi_read_block(fn->rmi_dev, data_addr + RMI_F03_OB_OFFSET, - &obs, ob_len); + error = rmi_read_block(fn->rmi_dev, data_addr, &obs, ob_len); if (error) { dev_err(&fn->dev, "%s: Failed to read F03 output buffers: %d\n", @@ -266,7 +309,8 @@ static void rmi_f03_remove(struct rmi_function *fn) { struct f03_data *f03 = dev_get_drvdata(&fn->dev); - serio_unregister_port(f03->serio); + if (f03->serio_registered) + serio_unregister_port(f03->serio); } struct rmi_function_handler rmi_f03_handler = { -- cgit v1.2.3 From 9f87b9fc369f7719ccdac5077855c5c03b625571 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 17 Jan 2018 11:58:31 -0800 Subject: Input: synaptics-rmi4 - log when we create a guest serio port To ease analyzing boot behavior from logs, let's log when we are about to register the pass-through serio port. Also, let's drop "Synaptics" prefix from the port name, as RMI4 is good enough indicator already, and having the prefix means that the name does not fit into serio->name field. While at it move from hard-coded seio->phys to one mentioning the sensor ID (such as "rmi4-00.fn03/serio0"). Reviewed-by: Lyude Paul Signed-off-by: Dmitry Torokhov --- drivers/input/rmi4/rmi_f03.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/rmi4/rmi_f03.c b/drivers/input/rmi4/rmi_f03.c index 7ccbb370a9a8..88822196d6b7 100644 --- a/drivers/input/rmi4/rmi_f03.c +++ b/drivers/input/rmi4/rmi_f03.c @@ -184,14 +184,15 @@ static int rmi_f03_register_pt(struct f03_data *f03) serio->close = rmi_f03_pt_close; serio->port_data = f03; - strlcpy(serio->name, "Synaptics RMI4 PS/2 pass-through", - sizeof(serio->name)); - strlcpy(serio->phys, "synaptics-rmi4-pt/serio1", - sizeof(serio->phys)); + strlcpy(serio->name, "RMI4 PS/2 pass-through", sizeof(serio->name)); + snprintf(serio->phys, sizeof(serio->phys), "%s/serio0", + dev_name(&f03->fn->dev)); serio->dev.parent = &f03->fn->dev; f03->serio = serio; + printk(KERN_INFO "serio: %s port at %s\n", + serio->name, dev_name(&f03->fn->dev)); serio_register_port(serio); return 0; -- cgit v1.2.3 From aac21bbbf7d7136364c8ac2ef3e8aed2d887a760 Mon Sep 17 00:00:00 2001 From: Marcus Folkesson Date: Mon, 22 Jan 2018 09:27:37 -0800 Subject: Input: da9052_tsi - remove unused mutex Signed-off-by: Marcus Folkesson Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/da9052_tsi.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/da9052_tsi.c b/drivers/input/touchscreen/da9052_tsi.c index 5a013bb7bcad..b5dfd5944cc3 100644 --- a/drivers/input/touchscreen/da9052_tsi.c +++ b/drivers/input/touchscreen/da9052_tsi.c @@ -26,7 +26,6 @@ struct da9052_tsi { struct da9052 *da9052; struct input_dev *dev; struct delayed_work ts_pen_work; - struct mutex mutex; bool stopped; bool adc_on; }; -- cgit v1.2.3 From eae7d90c9224ccbbd8a58a3f6610896242c620a0 Mon Sep 17 00:00:00 2001 From: Markus Elfring Date: Mon, 22 Jan 2018 10:54:21 -0800 Subject: Input: auo-pixcir-ts - remove custom log for a failed memory allocation Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Reviewed-by: Heiko Stuebner Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/auo-pixcir-ts.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/auo-pixcir-ts.c b/drivers/input/touchscreen/auo-pixcir-ts.c index 6592fc5d48b4..398e27c48a51 100644 --- a/drivers/input/touchscreen/auo-pixcir-ts.c +++ b/drivers/input/touchscreen/auo-pixcir-ts.c @@ -487,10 +487,8 @@ static struct auo_pixcir_ts_platdata *auo_pixcir_parse_dt(struct device *dev) return ERR_PTR(-ENOENT); pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) { - dev_err(dev, "failed to allocate platform data\n"); + if (!pdata) return ERR_PTR(-ENOMEM); - } pdata->gpio_int = of_get_gpio(np, 0); if (!gpio_is_valid(pdata->gpio_int)) { -- cgit v1.2.3 From 2cdc8749613de4e52f14cdb43f686d59173ed24e Mon Sep 17 00:00:00 2001 From: Markus Elfring Date: Mon, 22 Jan 2018 10:55:30 -0800 Subject: Input: auo-pixcir-ts - delete an unnecessary return statement The script "checkpatch.pl" pointed information out like the following: WARNING: void function return statements are not generally useful Thus remove such a statement in the affected function. Signed-off-by: Markus Elfring Reviewed-by: Heiko Stuebner Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/auo-pixcir-ts.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/auo-pixcir-ts.c b/drivers/input/touchscreen/auo-pixcir-ts.c index 398e27c48a51..df8ca856393b 100644 --- a/drivers/input/touchscreen/auo-pixcir-ts.c +++ b/drivers/input/touchscreen/auo-pixcir-ts.c @@ -408,8 +408,6 @@ static void auo_pixcir_input_close(struct input_dev *dev) struct auo_pixcir_ts *ts = input_get_drvdata(dev); auo_pixcir_stop(ts); - - return; } static int __maybe_unused auo_pixcir_suspend(struct device *dev) -- cgit v1.2.3 From cba04cdf437d745fac85220d1d692a9ae23d7004 Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Mon, 22 Jan 2018 17:32:46 -0800 Subject: Input: stmfts - set IRQ_NOAUTOEN to the irq flag The interrupt is requested before the device is powered on and it's value in some cases cannot be reliable. It happens on some devices that an interrupt is generated as soon as requested before having the chance to disable the irq. Set the irq flag as IRQ_NOAUTOEN before requesting it. This patch mutes the error: stmfts 2-0049: failed to read events: -11 received sometimes during boot time. Signed-off-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/stmfts.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c index 2a123e20a42e..efdb1a75a163 100644 --- a/drivers/input/touchscreen/stmfts.c +++ b/drivers/input/touchscreen/stmfts.c @@ -682,6 +682,14 @@ static int stmfts_probe(struct i2c_client *client, input_set_drvdata(sdata->input, sdata); + /* + * stmfts_power_on expects interrupt to be disabled, but + * at this point the device is still off and I do not trust + * the status of the irq line that can generate some spurious + * interrupts. To be on the safe side it's better to not enable + * the interrupts during their request. + */ + irq_set_status_flags(client->irq, IRQ_NOAUTOEN); err = devm_request_threaded_irq(&client->dev, client->irq, NULL, stmfts_irq_handler, IRQF_ONESHOT, @@ -689,9 +697,6 @@ static int stmfts_probe(struct i2c_client *client, if (err) return err; - /* stmfts_power_on expects interrupt to be disabled */ - disable_irq(client->irq); - dev_dbg(&client->dev, "initializing ST-Microelectronics FTS...\n"); err = stmfts_power_on(sdata); -- cgit v1.2.3 From 4b3e910d7f430ab76dd37131bb75129878950163 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 23 Jan 2018 10:01:57 -0800 Subject: Input: edt-ft5x06 - fix error handling for factory mode on non-M06 When attempting enter factory mode on firmware that does not support it, we'd error out, but leave the device with interrupts disabled, and thus touch not working. Fix it by moving the check before we disable interrupts/allocate memory for debug buffers. Fixes: fd335ab04b3f ("Input: edt-ft5x06 - add support for M09 firmware version") Reviewed-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/edt-ft5x06.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c index c53a3d7239e7..1e18ca0d1b4e 100644 --- a/drivers/input/touchscreen/edt-ft5x06.c +++ b/drivers/input/touchscreen/edt-ft5x06.c @@ -511,6 +511,12 @@ static int edt_ft5x06_factory_mode(struct edt_ft5x06_ts_data *tsdata) int ret; int error; + if (tsdata->version != EDT_M06) { + dev_err(&client->dev, + "No factory mode support for non-M06 devices\n"); + return -EINVAL; + } + disable_irq(client->irq); if (!tsdata->raw_buffer) { @@ -524,9 +530,6 @@ static int edt_ft5x06_factory_mode(struct edt_ft5x06_ts_data *tsdata) } /* mode register is 0x3c when in the work mode */ - if (tsdata->version != EDT_M06) - goto m09_out; - error = edt_ft5x06_register_write(tsdata, WORK_REGISTER_OPMODE, 0x03); if (error) { dev_err(&client->dev, @@ -559,11 +562,6 @@ err_out: enable_irq(client->irq); return error; - -m09_out: - dev_err(&client->dev, "No factory mode support for M09/M12/GENERIC_FT\n"); - return -EINVAL; - } static int edt_ft5x06_work_mode(struct edt_ft5x06_ts_data *tsdata) -- cgit v1.2.3 From 5e703b883468f9e5c88bde82a2e5b34a89fefa96 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 23 Jan 2018 11:06:56 -0800 Subject: Input: mms114 - do not clobber interrupt trigger Rely on the platform (device tree, ACPI, etc) to properly configure interrupt trigger/polarity instead of hardcoding the falling edge. Reviewed-by: Simon Shields Tested-by: Simon Shields Reviewed-by: Andi Shyti Tested-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/mms114.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index e5eeb6311f7d..92f2e9da351f 100644 --- a/drivers/input/touchscreen/mms114.c +++ b/drivers/input/touchscreen/mms114.c @@ -497,9 +497,9 @@ static int mms114_probe(struct i2c_client *client, return error; } - error = devm_request_threaded_irq(&client->dev, client->irq, NULL, - mms114_interrupt, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - dev_name(&client->dev), data); + error = devm_request_threaded_irq(&client->dev, client->irq, + NULL, mms114_interrupt, IRQF_ONESHOT, + dev_name(&client->dev), data); if (error) { dev_err(&client->dev, "Failed to register interrupt\n"); return error; -- cgit v1.2.3 From 477baf7e9a45538f984216acba371b8bd190d4f3 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 23 Jan 2018 11:11:09 -0800 Subject: Input: mms114 - mark as direct input device mms14 is a touchscreen and thus a direct input device; let's mark it as such. This also allows us to drop some initialization code as input_init_mt_slots() will do that for us. Also add error handling for input_mt_init_slots(). Reviewed-by: Simon Shields Tested-by: Simon Shields Reviewed-by: Andi Shyti Tested-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/mms114.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index 92f2e9da351f..c3480db5d21e 100644 --- a/drivers/input/touchscreen/mms114.c +++ b/drivers/input/touchscreen/mms114.c @@ -462,14 +462,6 @@ static int mms114_probe(struct i2c_client *client, input_dev->open = mms114_input_open; input_dev->close = mms114_input_close; - __set_bit(EV_ABS, input_dev->evbit); - __set_bit(EV_KEY, input_dev->evbit); - __set_bit(BTN_TOUCH, input_dev->keybit); - input_set_abs_params(input_dev, ABS_X, 0, data->pdata->x_size, 0, 0); - input_set_abs_params(input_dev, ABS_Y, 0, data->pdata->y_size, 0, 0); - - /* For multi touch */ - input_mt_init_slots(input_dev, MMS114_MAX_TOUCH, 0); input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, MMS114_MAX_AREA, 0, 0); input_set_abs_params(input_dev, ABS_MT_POSITION_X, @@ -478,6 +470,11 @@ static int mms114_probe(struct i2c_client *client, 0, data->pdata->y_size, 0, 0); input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 255, 0, 0); + error = input_mt_init_slots(input_dev, MMS114_MAX_TOUCH, + INPUT_MT_DIRECT); + if (error) + return error; + input_set_drvdata(input_dev, data); i2c_set_clientdata(client, data); -- cgit v1.2.3 From 5b0d0033f3f3a3d09178ef0dcdd0d4e1a08666b8 Mon Sep 17 00:00:00 2001 From: Simon Shields Date: Mon, 22 Jan 2018 17:45:09 -0800 Subject: Input: mms114 - drop platform data and use generic APIs The MMS114 platform data has no in-tree users, so drop it. Switch to using the standard touchscreen properties via touchscreen_parse_properties(), and move the old DT parsing code to use device_property_*() APIs. Finally, use touchscreen_report_pos to report x/y coordinates and drop the custom x/y inversion code. Signed-off-by: Simon Shields Reviewed-by: Rob Herring Reviewed-by: Andi Shyti Tested-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- .../bindings/input/touchscreen/mms114.txt | 29 ++-- drivers/input/touchscreen/mms114.c | 147 +++++++++------------ include/linux/platform_data/mms114.h | 24 ---- 3 files changed, 82 insertions(+), 118 deletions(-) delete mode 100644 include/linux/platform_data/mms114.h (limited to 'drivers/input') diff --git a/Documentation/devicetree/bindings/input/touchscreen/mms114.txt b/Documentation/devicetree/bindings/input/touchscreen/mms114.txt index 89d4c56c5671..8f9f9f38eff4 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/mms114.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/mms114.txt @@ -4,14 +4,18 @@ Required properties: - compatible: must be "melfas,mms114" - reg: I2C address of the chip - interrupts: interrupt to which the chip is connected -- x-size: horizontal resolution of touchscreen -- y-size: vertical resolution of touchscreen +- touchscreen-size-x: See [1] +- touchscreen-size-y: See [1] Optional properties: -- contact-threshold: -- moving-threshold: -- x-invert: invert X axis -- y-invert: invert Y axis +- touchscreen-fuzz-x: See [1] +- touchscreen-fuzz-y: See [1] +- touchscreen-fuzz-pressure: See [1] +- touchscreen-inverted-x: See [1] +- touchscreen-inverted-y: See [1] +- touchscreen-swapped-x-y: See [1] + +[1]: Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt Example: @@ -22,12 +26,13 @@ Example: compatible = "melfas,mms114"; reg = <0x48>; interrupts = <39 0>; - x-size = <720>; - y-size = <1280>; - contact-threshold = <10>; - moving-threshold = <10>; - x-invert; - y-invert; + touchscreen-size-x = <720>; + touchscreen-size-y = <1280>; + touchscreen-fuzz-x = <10>; + touchscreen-fuzz-y = <10>; + touchscreen-fuzz-pressure = <10>; + touchscreen-inverted-x; + touchscreen-inverted-y; }; /* ... */ diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index c3480db5d21e..69e4288bf8aa 100644 --- a/drivers/input/touchscreen/mms114.c +++ b/drivers/input/touchscreen/mms114.c @@ -12,8 +12,8 @@ #include #include #include +#include #include -#include #include #include @@ -55,7 +55,9 @@ struct mms114_data { struct input_dev *input_dev; struct regulator *core_reg; struct regulator *io_reg; - const struct mms114_platform_data *pdata; + struct touchscreen_properties props; + unsigned int contact_threshold; + unsigned int moving_threshold; /* Use cache data for mode control register(write only) */ u8 cache_mode_control; @@ -143,7 +145,6 @@ static int mms114_write_reg(struct mms114_data *data, unsigned int reg, static void mms114_process_mt(struct mms114_data *data, struct mms114_touch *touch) { - const struct mms114_platform_data *pdata = data->pdata; struct i2c_client *client = data->client; struct input_dev *input_dev = data->input_dev; unsigned int id; @@ -163,16 +164,6 @@ static void mms114_process_mt(struct mms114_data *data, struct mms114_touch *tou id = touch->id - 1; x = touch->x_lo | touch->x_hi << 8; y = touch->y_lo | touch->y_hi << 8; - if (x > pdata->x_size || y > pdata->y_size) { - dev_dbg(&client->dev, - "Wrong touch coordinates (%d, %d)\n", x, y); - return; - } - - if (pdata->x_invert) - x = pdata->x_size - x; - if (pdata->y_invert) - y = pdata->y_size - y; dev_dbg(&client->dev, "id: %d, type: %d, pressed: %d, x: %d, y: %d, width: %d, strength: %d\n", @@ -183,9 +174,8 @@ static void mms114_process_mt(struct mms114_data *data, struct mms114_touch *tou input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, touch->pressed); if (touch->pressed) { + touchscreen_report_pos(input_dev, &data->props, x, y, true); input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, touch->width); - input_report_abs(input_dev, ABS_MT_POSITION_X, x); - input_report_abs(input_dev, ABS_MT_POSITION_Y, y); input_report_abs(input_dev, ABS_MT_PRESSURE, touch->strength); } } @@ -263,7 +253,7 @@ static int mms114_get_version(struct mms114_data *data) static int mms114_setup_regs(struct mms114_data *data) { - const struct mms114_platform_data *pdata = data->pdata; + const struct touchscreen_properties *props = &data->props; int val; int error; @@ -275,32 +265,32 @@ static int mms114_setup_regs(struct mms114_data *data) if (error < 0) return error; - val = (pdata->x_size >> 8) & 0xf; - val |= ((pdata->y_size >> 8) & 0xf) << 4; + val = (props->max_x >> 8) & 0xf; + val |= ((props->max_y >> 8) & 0xf) << 4; error = mms114_write_reg(data, MMS114_XY_RESOLUTION_H, val); if (error < 0) return error; - val = pdata->x_size & 0xff; + val = props->max_x & 0xff; error = mms114_write_reg(data, MMS114_X_RESOLUTION, val); if (error < 0) return error; - val = pdata->y_size & 0xff; + val = props->max_x & 0xff; error = mms114_write_reg(data, MMS114_Y_RESOLUTION, val); if (error < 0) return error; - if (pdata->contact_threshold) { + if (data->contact_threshold) { error = mms114_write_reg(data, MMS114_CONTACT_THRESHOLD, - pdata->contact_threshold); + data->contact_threshold); if (error < 0) return error; } - if (pdata->moving_threshold) { + if (data->moving_threshold) { error = mms114_write_reg(data, MMS114_MOVING_THRESHOLD, - pdata->moving_threshold); + data->moving_threshold); if (error < 0) return error; } @@ -335,9 +325,6 @@ static int mms114_start(struct mms114_data *data) return error; } - if (data->pdata->cfg_pin) - data->pdata->cfg_pin(true); - enable_irq(client->irq); return 0; @@ -350,9 +337,6 @@ static void mms114_stop(struct mms114_data *data) disable_irq(client->irq); - if (data->pdata->cfg_pin) - data->pdata->cfg_pin(false); - error = regulator_disable(data->io_reg); if (error) dev_warn(&client->dev, "Failed to disable vdd: %d\n", error); @@ -376,67 +360,43 @@ static void mms114_input_close(struct input_dev *dev) mms114_stop(data); } -#ifdef CONFIG_OF -static struct mms114_platform_data *mms114_parse_dt(struct device *dev) +static int mms114_parse_legacy_bindings(struct mms114_data *data) { - struct mms114_platform_data *pdata; - struct device_node *np = dev->of_node; - - if (!np) - return NULL; + struct device *dev = &data->client->dev; + struct touchscreen_properties *props = &data->props; - pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) { - dev_err(dev, "failed to allocate platform data\n"); - return NULL; + if (device_property_read_u32(dev, "x-size", &props->max_x)) { + dev_dbg(dev, "failed to get legacy x-size property\n"); + return -EINVAL; } - if (of_property_read_u32(np, "x-size", &pdata->x_size)) { - dev_err(dev, "failed to get x-size property\n"); - return NULL; + if (device_property_read_u32(dev, "y-size", &props->max_y)) { + dev_dbg(dev, "failed to get legacy y-size property\n"); + return -EINVAL; } - if (of_property_read_u32(np, "y-size", &pdata->y_size)) { - dev_err(dev, "failed to get y-size property\n"); - return NULL; - } + device_property_read_u32(dev, "contact-threshold", + &data->contact_threshold); + device_property_read_u32(dev, "moving-threshold", + &data->moving_threshold); - of_property_read_u32(np, "contact-threshold", - &pdata->contact_threshold); - of_property_read_u32(np, "moving-threshold", - &pdata->moving_threshold); + if (device_property_read_bool(dev, "x-invert")) + props->invert_x = true; + if (device_property_read_bool(dev, "y-invert")) + props->invert_y = true; - if (of_find_property(np, "x-invert", NULL)) - pdata->x_invert = true; - if (of_find_property(np, "y-invert", NULL)) - pdata->y_invert = true; + props->swap_x_y = false; - return pdata; -} -#else -static inline struct mms114_platform_data *mms114_parse_dt(struct device *dev) -{ - return NULL; + return 0; } -#endif static int mms114_probe(struct i2c_client *client, const struct i2c_device_id *id) { - const struct mms114_platform_data *pdata; struct mms114_data *data; struct input_dev *input_dev; int error; - pdata = dev_get_platdata(&client->dev); - if (!pdata) - pdata = mms114_parse_dt(&client->dev); - - if (!pdata) { - dev_err(&client->dev, "Need platform data\n"); - return -EINVAL; - } - if (!i2c_check_functionality(client->adapter, I2C_FUNC_PROTOCOL_MANGLING)) { dev_err(&client->dev, @@ -454,7 +414,38 @@ static int mms114_probe(struct i2c_client *client, data->client = client; data->input_dev = input_dev; - data->pdata = pdata; + + input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_X); + input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_Y); + input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 255, 0, 0); + input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, + 0, MMS114_MAX_AREA, 0, 0); + + touchscreen_parse_properties(input_dev, true, &data->props); + if (!data->props.max_x || !data->props.max_y) { + dev_dbg(&client->dev, + "missing X/Y size properties, trying legacy bindings\n"); + error = mms114_parse_legacy_bindings(data); + if (error) + return error; + + input_set_abs_params(input_dev, ABS_MT_POSITION_X, + 0, data->props.max_x, 0, 0); + input_set_abs_params(input_dev, ABS_MT_POSITION_Y, + 0, data->props.max_y, 0, 0); + } + + /* + * The firmware handles movement and pressure fuzz, so + * don't duplicate that in software. + */ + data->moving_threshold = input_abs_get_fuzz(input_dev, + ABS_MT_POSITION_X); + data->contact_threshold = input_abs_get_fuzz(input_dev, + ABS_MT_PRESSURE); + input_abs_set_fuzz(input_dev, ABS_MT_POSITION_X, 0); + input_abs_set_fuzz(input_dev, ABS_MT_POSITION_Y, 0); + input_abs_set_fuzz(input_dev, ABS_MT_PRESSURE, 0); input_dev->name = "MELFAS MMS114 Touchscreen"; input_dev->id.bustype = BUS_I2C; @@ -462,14 +453,6 @@ static int mms114_probe(struct i2c_client *client, input_dev->open = mms114_input_open; input_dev->close = mms114_input_close; - input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, - 0, MMS114_MAX_AREA, 0, 0); - input_set_abs_params(input_dev, ABS_MT_POSITION_X, - 0, data->pdata->x_size, 0, 0); - input_set_abs_params(input_dev, ABS_MT_POSITION_Y, - 0, data->pdata->y_size, 0, 0); - input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 255, 0, 0); - error = input_mt_init_slots(input_dev, MMS114_MAX_TOUCH, INPUT_MT_DIRECT); if (error) diff --git a/include/linux/platform_data/mms114.h b/include/linux/platform_data/mms114.h deleted file mode 100644 index 5722ebfb2738..000000000000 --- a/include/linux/platform_data/mms114.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * Copyright (C) 2012 Samsung Electronics Co.Ltd - * Author: Joonyoung Shim - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundationr - */ - -#ifndef __LINUX_MMS114_H -#define __LINUX_MMS114_H - -struct mms114_platform_data { - unsigned int x_size; - unsigned int y_size; - unsigned int contact_threshold; - unsigned int moving_threshold; - bool x_invert; - bool y_invert; - - void (*cfg_pin)(bool); -}; - -#endif /* __LINUX_MMS114_H */ -- cgit v1.2.3 From 72b0c0cf9720cd139829610cfcd9ac294451a9f8 Mon Sep 17 00:00:00 2001 From: Simon Shields Date: Tue, 23 Jan 2018 12:02:39 -0800 Subject: Input: mms114 - add support for mms152 MMS152 has no configuration registers, but the packet format used in interrupts is identical to mms114. Signed-off-by: Simon Shields Reviewed-by: Andi Shyti Tested-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- .../bindings/input/touchscreen/mms114.txt | 6 +- drivers/input/touchscreen/mms114.c | 92 +++++++++++++++++----- 2 files changed, 77 insertions(+), 21 deletions(-) (limited to 'drivers/input') diff --git a/Documentation/devicetree/bindings/input/touchscreen/mms114.txt b/Documentation/devicetree/bindings/input/touchscreen/mms114.txt index 8f9f9f38eff4..2cd954051d29 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/mms114.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/mms114.txt @@ -1,7 +1,9 @@ -* MELFAS MMS114 touchscreen controller +* MELFAS MMS114/MMS152 touchscreen controller Required properties: -- compatible: must be "melfas,mms114" +- compatible: should be one of: + - "melfas,mms114" + - "melfas,mms152" - reg: I2C address of the chip - interrupts: interrupt to which the chip is connected - touchscreen-size-x: See [1] diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index 69e4288bf8aa..c54f4afe1103 100644 --- a/drivers/input/touchscreen/mms114.c +++ b/drivers/input/touchscreen/mms114.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -33,6 +34,9 @@ #define MMS114_INFOMATION 0x10 #define MMS114_TSP_REV 0xF0 +#define MMS152_FW_REV 0xE1 +#define MMS152_COMPAT_GROUP 0xF2 + /* Minimum delay time is 50us between stop and start signal of i2c */ #define MMS114_I2C_DELAY 50 @@ -50,12 +54,18 @@ #define MMS114_TYPE_TOUCHSCREEN 1 #define MMS114_TYPE_TOUCHKEY 2 +enum mms_type { + TYPE_MMS114 = 114, + TYPE_MMS152 = 152, +}; + struct mms114_data { struct i2c_client *client; struct input_dev *input_dev; struct regulator *core_reg; struct regulator *io_reg; struct touchscreen_properties props; + enum mms_type type; unsigned int contact_threshold; unsigned int moving_threshold; @@ -239,14 +249,33 @@ static int mms114_get_version(struct mms114_data *data) { struct device *dev = &data->client->dev; u8 buf[6]; + int group; int error; - error = __mms114_read_reg(data, MMS114_TSP_REV, 6, buf); - if (error < 0) - return error; + switch (data->type) { + case TYPE_MMS152: + error = __mms114_read_reg(data, MMS152_FW_REV, 3, buf); + if (error) + return error; + + group = i2c_smbus_read_byte_data(data->client, + MMS152_COMPAT_GROUP); + if (group < 0) + return group; + + dev_info(dev, "TSP FW Rev: bootloader 0x%x / core 0x%x / config 0x%x, Compat group: %c\n", + buf[0], buf[1], buf[2], group); + break; + + case TYPE_MMS114: + error = __mms114_read_reg(data, MMS114_TSP_REV, 6, buf); + if (error) + return error; - dev_info(dev, "TSP Rev: 0x%x, HW Rev: 0x%x, Firmware Ver: 0x%x\n", - buf[0], buf[1], buf[3]); + dev_info(dev, "TSP Rev: 0x%x, HW Rev: 0x%x, Firmware Ver: 0x%x\n", + buf[0], buf[1], buf[3]); + break; + } return 0; } @@ -261,6 +290,10 @@ static int mms114_setup_regs(struct mms114_data *data) if (error < 0) return error; + /* MMS152 has no configuration or power on registers */ + if (data->type == TYPE_MMS152) + return 0; + error = mms114_set_active(data, true); if (error < 0) return error; @@ -395,6 +428,7 @@ static int mms114_probe(struct i2c_client *client, { struct mms114_data *data; struct input_dev *input_dev; + const void *match_data; int error; if (!i2c_check_functionality(client->adapter, @@ -415,6 +449,13 @@ static int mms114_probe(struct i2c_client *client, data->client = client; data->input_dev = input_dev; + /* FIXME: switch to device_get_match_data() when available */ + match_data = of_device_get_match_data(&client->dev); + if (!match_data) + return -EINVAL; + + data->type = (enum mms_type)match_data; + input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_X); input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_Y); input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 255, 0, 0); @@ -435,19 +476,26 @@ static int mms114_probe(struct i2c_client *client, 0, data->props.max_y, 0, 0); } - /* - * The firmware handles movement and pressure fuzz, so - * don't duplicate that in software. - */ - data->moving_threshold = input_abs_get_fuzz(input_dev, - ABS_MT_POSITION_X); - data->contact_threshold = input_abs_get_fuzz(input_dev, - ABS_MT_PRESSURE); - input_abs_set_fuzz(input_dev, ABS_MT_POSITION_X, 0); - input_abs_set_fuzz(input_dev, ABS_MT_POSITION_Y, 0); - input_abs_set_fuzz(input_dev, ABS_MT_PRESSURE, 0); - - input_dev->name = "MELFAS MMS114 Touchscreen"; + if (data->type == TYPE_MMS114) { + /* + * The firmware handles movement and pressure fuzz, so + * don't duplicate that in software. + */ + data->moving_threshold = input_abs_get_fuzz(input_dev, + ABS_MT_POSITION_X); + data->contact_threshold = input_abs_get_fuzz(input_dev, + ABS_MT_PRESSURE); + input_abs_set_fuzz(input_dev, ABS_MT_POSITION_X, 0); + input_abs_set_fuzz(input_dev, ABS_MT_POSITION_Y, 0); + input_abs_set_fuzz(input_dev, ABS_MT_PRESSURE, 0); + } + + input_dev->name = devm_kasprintf(&client->dev, GFP_KERNEL, + "MELFAS MMS%d Touchscreen", + data->type); + if (!input_dev->name) + return -ENOMEM; + input_dev->id.bustype = BUS_I2C; input_dev->dev.parent = &client->dev; input_dev->open = mms114_input_open; @@ -549,7 +597,13 @@ MODULE_DEVICE_TABLE(i2c, mms114_id); #ifdef CONFIG_OF static const struct of_device_id mms114_dt_match[] = { - { .compatible = "melfas,mms114" }, + { + .compatible = "melfas,mms114", + .data = (void *)TYPE_MMS114, + }, { + .compatible = "melfas,mms152", + .data = (void *)TYPE_MMS152, + }, { } }; MODULE_DEVICE_TABLE(of, mms114_dt_match); -- cgit v1.2.3 From a22e88fd7da44616388d366030e9bd170ab97788 Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Mon, 29 Jan 2018 11:43:52 -0800 Subject: Input: mms114 - replace mdelay with msleep 200 milliseconds is a very long time to keep the CPU busy looping. Use msleep instead. Signed-off-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/mms114.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index c54f4afe1103..7b1307c1374b 100644 --- a/drivers/input/touchscreen/mms114.c +++ b/drivers/input/touchscreen/mms114.c @@ -349,7 +349,7 @@ static int mms114_start(struct mms114_data *data) return error; } - mdelay(MMS114_POWERON_DELAY); + msleep(MMS114_POWERON_DELAY); error = mms114_setup_regs(data); if (error < 0) { -- cgit v1.2.3 From 7546db025f265fc0d79c754e912d5fb5fcab5b89 Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Mon, 29 Jan 2018 11:44:44 -0800 Subject: Input: mms114 - use BIT() macro instead of explicit shifting Signed-off-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/mms114.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index 7b1307c1374b..1483af9e3d05 100644 --- a/drivers/input/touchscreen/mms114.c +++ b/drivers/input/touchscreen/mms114.c @@ -21,7 +21,7 @@ /* Write only registers */ #define MMS114_MODE_CONTROL 0x01 #define MMS114_OPERATION_MODE_MASK 0xE -#define MMS114_ACTIVE (1 << 1) +#define MMS114_ACTIVE BIT(1) #define MMS114_XY_RESOLUTION_H 0x02 #define MMS114_X_RESOLUTION 0x03 -- cgit v1.2.3 From 13e945401a8dd5098ed07d242542e90be9f1c19d Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Mon, 29 Jan 2018 11:46:02 -0800 Subject: Input: mms114 - fix typo in definition It's 'MMS114_INFORMATION', not 'MMS114_INFOMATION' Signed-off-by: Andi Shyti Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/mms114.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index 1483af9e3d05..db4f6bb502e3 100644 --- a/drivers/input/touchscreen/mms114.c +++ b/drivers/input/touchscreen/mms114.c @@ -31,7 +31,7 @@ /* Read only registers */ #define MMS114_PACKET_SIZE 0x0F -#define MMS114_INFOMATION 0x10 +#define MMS114_INFORMATION 0x10 #define MMS114_TSP_REV 0xF0 #define MMS152_FW_REV 0xE1 @@ -213,7 +213,7 @@ static irqreturn_t mms114_interrupt(int irq, void *dev_id) touch_size = packet_size / MMS114_PACKET_NUM; - error = __mms114_read_reg(data, MMS114_INFOMATION, packet_size, + error = __mms114_read_reg(data, MMS114_INFORMATION, packet_size, (u8 *)touch); if (error < 0) goto out; -- cgit v1.2.3 From fafef982c7353e8982b951e40573e990ccf0ed00 Mon Sep 17 00:00:00 2001 From: Marcin Niestroj Date: Fri, 26 Jan 2018 11:08:59 -0800 Subject: Input: goodix - use generic touchscreen_properties Use touchscreen_properties structure instead of implementing all properties by our own. It allows us to reuse generic code for parsing device-tree properties (which was implemented manually in the driver for now). Additionally, it allows us to report events using generic touchscreen_report_pos(), which automatically handles inverted and swapped axes. This fixes the issue with the custom code incorrectly handling case where ts->inverted_x and ts->swapped_x_y were true, but ts->inverted_y was false. Assuming we have 720x1280 touch panel, ts->abs_x_max == 1279 and ts->abs_y_max == 719 (because we inverted that in goodix_read_config()). Now let's assume that we received event from (0:0) position (in touch panel original coordinates). In function goodix_ts_report_touch() we calculate input_x as 1279, but after swapping input_y takes that value (which is more that maximum 719 value reported during initialization). Note that since touchscreen coordinates are 0-indexed, we now report touchscreen range as (0:size-1). Developed and tested on custom DT-based device with gt1151 touch panel. Signed-off-by: Marcin Niestroj [dtor: fix endianness annotation reported by sparse, handle errors when initializing MT slots] Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/goodix.c | 141 +++++++++++++++---------------------- 1 file changed, 58 insertions(+), 83 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c index ecec8eb17f28..9736c83dd418 100644 --- a/drivers/input/touchscreen/goodix.c +++ b/drivers/input/touchscreen/goodix.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -43,11 +44,7 @@ struct goodix_ts_data { struct i2c_client *client; struct input_dev *input_dev; const struct goodix_chip_data *chip; - int abs_x_max; - int abs_y_max; - bool swapped_x_y; - bool inverted_x; - bool inverted_y; + struct touchscreen_properties prop; unsigned int max_touch_num; unsigned int int_trigger_type; struct gpio_desc *gpiod_int; @@ -160,7 +157,7 @@ static int goodix_i2c_read(struct i2c_client *client, u16 reg, u8 *buf, int len) { struct i2c_msg msgs[2]; - u16 wbuf = cpu_to_be16(reg); + __be16 wbuf = cpu_to_be16(reg); int ret; msgs[0].flags = 0; @@ -295,18 +292,10 @@ static void goodix_ts_report_touch(struct goodix_ts_data *ts, u8 *coor_data) int input_y = get_unaligned_le16(&coor_data[3]); int input_w = get_unaligned_le16(&coor_data[5]); - /* Inversions have to happen before axis swapping */ - if (ts->inverted_x) - input_x = ts->abs_x_max - input_x; - if (ts->inverted_y) - input_y = ts->abs_y_max - input_y; - if (ts->swapped_x_y) - swap(input_x, input_y); - input_mt_slot(ts->input_dev, id); input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true); - input_report_abs(ts->input_dev, ABS_MT_POSITION_X, input_x); - input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, input_y); + touchscreen_report_pos(ts->input_dev, &ts->prop, + input_x, input_y, true); input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, input_w); input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, input_w); } @@ -579,44 +568,27 @@ static int goodix_get_gpio_config(struct goodix_ts_data *ts) static void goodix_read_config(struct goodix_ts_data *ts) { u8 config[GOODIX_CONFIG_MAX_LENGTH]; + int x_max, y_max; int error; error = goodix_i2c_read(ts->client, ts->chip->config_addr, config, ts->chip->config_len); if (error) { - dev_warn(&ts->client->dev, - "Error reading config (%d), using defaults\n", + dev_warn(&ts->client->dev, "Error reading config: %d\n", error); - ts->abs_x_max = GOODIX_MAX_WIDTH; - ts->abs_y_max = GOODIX_MAX_HEIGHT; - if (ts->swapped_x_y) - swap(ts->abs_x_max, ts->abs_y_max); ts->int_trigger_type = GOODIX_INT_TRIGGER; ts->max_touch_num = GOODIX_MAX_CONTACTS; return; } - ts->abs_x_max = get_unaligned_le16(&config[RESOLUTION_LOC]); - ts->abs_y_max = get_unaligned_le16(&config[RESOLUTION_LOC + 2]); - if (ts->swapped_x_y) - swap(ts->abs_x_max, ts->abs_y_max); ts->int_trigger_type = config[TRIGGER_LOC] & 0x03; ts->max_touch_num = config[MAX_CONTACTS_LOC] & 0x0f; - if (!ts->abs_x_max || !ts->abs_y_max || !ts->max_touch_num) { - dev_err(&ts->client->dev, - "Invalid config, using defaults\n"); - ts->abs_x_max = GOODIX_MAX_WIDTH; - ts->abs_y_max = GOODIX_MAX_HEIGHT; - if (ts->swapped_x_y) - swap(ts->abs_x_max, ts->abs_y_max); - ts->max_touch_num = GOODIX_MAX_CONTACTS; - } - if (dmi_check_system(rotated_screen)) { - ts->inverted_x = true; - ts->inverted_y = true; - dev_dbg(&ts->client->dev, - "Applying '180 degrees rotated screen' quirk\n"); + x_max = get_unaligned_le16(&config[RESOLUTION_LOC]); + y_max = get_unaligned_le16(&config[RESOLUTION_LOC + 2]); + if (x_max && y_max) { + input_abs_set_max(ts->input_dev, ABS_MT_POSITION_X, x_max - 1); + input_abs_set_max(ts->input_dev, ABS_MT_POSITION_Y, y_max - 1); } } @@ -676,32 +648,28 @@ static int goodix_i2c_test(struct i2c_client *client) } /** - * goodix_request_input_dev - Allocate, populate and register the input device + * goodix_configure_dev - Finish device initialization * * @ts: our goodix_ts_data pointer * - * Must be called during probe + * Must be called from probe to finish initialization of the device. + * Contains the common initialization code for both devices that + * declare gpio pins and devices that do not. It is either called + * directly from probe or from request_firmware_wait callback. */ -static int goodix_request_input_dev(struct goodix_ts_data *ts) +static int goodix_configure_dev(struct goodix_ts_data *ts) { int error; + ts->int_trigger_type = GOODIX_INT_TRIGGER; + ts->max_touch_num = GOODIX_MAX_CONTACTS; + ts->input_dev = devm_input_allocate_device(&ts->client->dev); if (!ts->input_dev) { dev_err(&ts->client->dev, "Failed to allocate input device."); return -ENOMEM; } - input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, - 0, ts->abs_x_max, 0, 0); - input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, - 0, ts->abs_y_max, 0, 0); - input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0); - input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0); - - input_mt_init_slots(ts->input_dev, ts->max_touch_num, - INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED); - ts->input_dev->name = "Goodix Capacitive TouchScreen"; ts->input_dev->phys = "input/ts"; ts->input_dev->id.bustype = BUS_I2C; @@ -712,42 +680,49 @@ static int goodix_request_input_dev(struct goodix_ts_data *ts) /* Capacitive Windows/Home button on some devices */ input_set_capability(ts->input_dev, EV_KEY, KEY_LEFTMETA); - error = input_register_device(ts->input_dev); - if (error) { - dev_err(&ts->client->dev, - "Failed to register input device: %d", error); - return error; - } + input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_X); + input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_Y); + input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0); + input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0); - return 0; -} + /* Read configuration and apply touchscreen parameters */ + goodix_read_config(ts); -/** - * goodix_configure_dev - Finish device initialization - * - * @ts: our goodix_ts_data pointer - * - * Must be called from probe to finish initialization of the device. - * Contains the common initialization code for both devices that - * declare gpio pins and devices that do not. It is either called - * directly from probe or from request_firmware_wait callback. - */ -static int goodix_configure_dev(struct goodix_ts_data *ts) -{ - int error; + /* Try overriding touchscreen parameters via device properties */ + touchscreen_parse_properties(ts->input_dev, true, &ts->prop); - ts->swapped_x_y = device_property_read_bool(&ts->client->dev, - "touchscreen-swapped-x-y"); - ts->inverted_x = device_property_read_bool(&ts->client->dev, - "touchscreen-inverted-x"); - ts->inverted_y = device_property_read_bool(&ts->client->dev, - "touchscreen-inverted-y"); + if (!ts->prop.max_x || !ts->prop.max_y || !ts->max_touch_num) { + dev_err(&ts->client->dev, "Invalid config, using defaults\n"); + ts->prop.max_x = GOODIX_MAX_WIDTH - 1; + ts->prop.max_y = GOODIX_MAX_HEIGHT - 1; + ts->max_touch_num = GOODIX_MAX_CONTACTS; + input_abs_set_max(ts->input_dev, + ABS_MT_POSITION_X, ts->prop.max_x); + input_abs_set_max(ts->input_dev, + ABS_MT_POSITION_Y, ts->prop.max_y); + } - goodix_read_config(ts); + if (dmi_check_system(rotated_screen)) { + ts->prop.invert_x = true; + ts->prop.invert_y = true; + dev_dbg(&ts->client->dev, + "Applying '180 degrees rotated screen' quirk\n"); + } - error = goodix_request_input_dev(ts); - if (error) + error = input_mt_init_slots(ts->input_dev, ts->max_touch_num, + INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED); + if (error) { + dev_err(&ts->client->dev, + "Failed to initialize MT slots: %d", error); + return error; + } + + error = input_register_device(ts->input_dev); + if (error) { + dev_err(&ts->client->dev, + "Failed to register input device: %d", error); return error; + } ts->irq_flags = goodix_irq_flags[ts->int_trigger_type] | IRQF_ONESHOT; error = goodix_request_irq(ts); -- cgit v1.2.3